Compilation of Rules and Regulations of the State of Georgia › Department 110 - RULES OF GEORGIA DEPARTMENT OF COMMUNITY AFFAIRS › Chapter 110-11 - GEORGIA STATE MINIMUM STANDARD CODES › Subject 110-11-1 - GEORGIA STATE MINIMUM STANDARD CODES › Rule 110-11-1-.25 - International Residential Code for One- and Two-Family Dwellings (IRC), 2018 Edition with 2020 and 2024 Georgia State Amendment

Current through Rules and Regulations filed through June 27, 2024
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GEORGIA STATE MINIMUM STANDARD ONE- AND
				  TWO-FAMILY DWELLING CODE
(INTERNATIONAL RESIDENTIAL CODE FOR ONE-
				  AND TWO-FAMILY DWELLINGS WITH GEORGIA STATE AMENDMENTS)
The INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND
				  TWO-FAMILY DWELLINGS, 2018 Edition, published by the International Code
				  Council, when used in conjunction with these and any other Georgia State
				  Amendments to the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY
				  DWELLINGS, 2018 Edition, shall constitute the official
Georgia State
				  Minimum Standard One- and Two-Family Dwelling Code
.
Part IV, Energy Conservation (Chapter 11), is deleted
				  from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS.
				  Substitute all references to Chapter 11 ENERGY EFFICIENCY with references to
				  the
Georgia State Minimum Standard Energy Code (International Energy
				  Conservation Code with Georgia State Supplements and
				  Amendments).
Part VII, Plumbing (Chapters 25 through 33), is deleted
				  from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS.
				  Substitute for plumbing requirements the
Georgia State Minimum Standard
				  Plumbing Code
(
International Plumbing Code with Georgia State
				  Amendments
).
Part VIII, Electrical (Chapters 34 through 43), is
				  deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY
				  DWELLINGS. Substitute for electrical requirements the
Georgia State
				  Minimum Standard Electrical Code
(
National Electrical Code
				  with any Georgia State Amendments
).
GEORGIA STATE AMENDMENTS
CODE REFERENCES:
(a) Replace all references to the ICC
Electrical Code
with references to the
Georgia State
				Minimum Standard Electrical Code (National Electrical Code with any Georgia
				State Amendments)
.
(b)
				Replace all references to the
International Energy Conservation
				Code
(
IECC
) with references to the
Georgia
				State Minimum Standard Energy Code
(
IECC with Georgia State
				Supplements and Amendments
). The
Georgia State Minimum
				Standard Energy Code
shall be used for heating and air conditioning
				equipment.
SCOPE:
The provisions of the
International Residential Code
				  for One- and Two-family Dwellings
shall apply to the construction,
alteration
, movement, enlargement, replacement, repair,
				  equipment, use and occupancy, location, removal and demolition of detached one-
				  and two-family dwellings and townhouses separated by a 2-hour
				  fire-resistance-rated wall assembly, not more than three stories above
grade plane
in height with a separate means of egress and
				  their
accessory structures
.
Exceptions:
1. Live/work units complying with the
				requirements of Section 419 of the
International Building Code
shall be permitted to be built as one- and two-family
dwellings
or townhouses. Fire suppression required by Section
				419.5 of the
International Building Code
when constructed
				under the
International Residential Code for One- and Two-family
				Dwellings
shall conform to NFPA 13D.
2. Owner-occupied lodging houses with five or
				fewer guestrooms shall be permitted to be constructed in accordance with the
International Residential Code for One- and Two-family
				Dwellings
when equipped with a fire sprinkler system in accordance
				with NFPA 13D.
IMPORTANT NOTE
:
The intent of the GA amendments is that fire sprinklers shall
				  not be mandatory in one- and two-family dwellings. However, the provisions of
				  the 2018 Edition of the
International Residential Code for One- and
				  Two-Family Dwellings
regarding automatic fire sprinklers are to remain
				  in the Code for use when the builder/developer or owner chooses to install fire
				  sprinklers as an option.
{Ref. O.C.G.A. §
											8-2-4. Neither the state
				  residential and fire building code nor any residential and fire building code
				  adopted by a political subdivision of the state adopted after May 24, 2010,
				  shall include a requirement that fire sprinklers be installed in a
				  single-family dwelling or a residential building that contains no more than two
				  dwelling units.}
APPENDICES:
Appendices are not enforceable unless they are specifically
				  referenced in the body of the code or adopted by the Department of Community
				  Affairs or the Authority Having Jurisdiction.
*Revise the International Residential Code for
				  One- and Two-Family Dwellings, 2018 Edition, as follows:
CHAPTER 14
HEATING AND COOLING EQUIPMENT AND
				  APPLIANCES
SECTION M1402
CENTRAL FURNACES
*Revise Section M1402.1 'General' to read as follows:
M1402.1
General
Oil-fired central furnaces shall conform to ANSI/UL 727.
				  Electric furnaces shall conform to UL 1995 or UL/CSA 60335-2-40.
(Effective January 1, 2024)
SECTION M1403
HEAT PUMP EQUIPMENT
*Revise Section M1403.1 'Heat pumps' to read as
				  follows:
M1403.1
Heat
				pumps
Electric heat pumps shall be listed and labeled in accordance
				  with UL 1995 or UL/CSA 60335-240.
(Effective January 1, 2024)
SECTION M1412
ABSORPTION COOLING
				  EQUIPMENT
*Revise Section M1412.1 'Approval of equipment' to read as
				  follows:
M1412.1
Approval of equipment
Absorption systems shall be installed in accordance with the
				  manufacturer's instructions.
Absorption equipment shall comply with UL 1995 or UL/CSA
				  60335-2-40.
(Effective January 1, 2024)
SECTION M1413
EVAPORATIVE COOLING
				  EQUIPMENT
*Revise Section M1413.1 'General' to read as follows:
M1413.1
General
Evaporative cooling equipment and appliances shall comply
				  with UL 1995 or UL/CSA 60335-240 and shall be installed:
(Effective January 1, 2024)
CHAPTER 20
BOILERS AND WATER HEATERS
SECTION M2006
POOL HEATERS
*Revise Section M2006.1 'General' to read as follows:
M2006.1
General
Pool and spa heaters shall be installed in accordance with
				  the manufacturer's installation instructions. Oil-fired pool heaters shall
				  comply with UL 726. Electric pool and spa heaters shall comply with UL 12161.
				  Pool and spa heat pump water heaters shall comply with UL 1995, UL/CSA
				  60335-2-40 or CSA C22.2 No. 236.
(Effective January 1, 2024)
CHAPTER 44
REFERENCED STANDARDS
*Revise Chapter 44 'Referenced standards' to read as
				  follows:
ASHRAE
ASHRAE
1791 Tullie Circle NE Atlanta, GA 30329
34- 2022
Designation and Safety Classification of
							 Refrigerants
M1411.1
UL
UL LLC
333 Pfingsten Road Northbrook, IL 60062
1995-2015
Heating and Cooling Equipment
M1402.1, M1403.1, M1412.1, M1413.1,
							 M2006.1
UL/CSA 60335-2-40-2022
Standard for Household and Similar Electrical
							 Appliances - Safety -, Part 2-40: Particular Requirements for Electrical Heat
							 Pumps, Air-Conditioners and Dehumidifiers
M1402.1, M1403.1, M1412.1, M1413.1,
							 M2006.1
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GEORGIA STATE MINIMUM STANDARD ONE- AND
				  TWO-FAMILY DWELLING CODE
(INTERNATIONAL RESIDENTIAL CODE FOR ONE-
				  AND TWO-FAMILY DWELLINGS WITH GEORGIA STATE AMENDMENTS)
The INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND
				  TWO-FAMILY DWELLINGS, 2018 Edition, published by the International Code
				  Council, when used in conjunction with these and any other Georgia State
				  Amendments to the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY
				  DWELLINGS, 2018 Edition, shall constitute the official
Georgia State
				  Minimum Standard One- and Two-Family Dwelling Code
.
Part IV, Energy Conservation (Chapter 11), is deleted
				  from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS.
				  Substitute all references to Chapter 11 ENERGY EFFICIENCY with references to
				  the
Georgia State Minimum Standard Energy Code (International Energy
				  Conservation Code with Georgia State Supplements and
				  Amendments).
Part VII, Plumbing (Chapters 25 through 33), is deleted
				  from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS.
				  Substitute for plumbing requirements the
Georgia State Minimum Standard
				  Plumbing Code
(
International Plumbing Code with Georgia State
				  Amendments
).
Part VIII, Electrical (Chapters 34 through 43), is
				  deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY
				  DWELLINGS. Substitute for electrical requirements the
Georgia State
				  Minimum Standard Electrical Code
(
National Electrical Code
				  with any Georgia State Amendments
).
GEORGIA STATE AMENDMENTS
CODE REFERENCES:
(a) Replace all references to the ICC
Electrical Code
with references to the
Georgia State
				Minimum Standard Electrical Code (National Electrical Code with any Georgia
				State Amendments)
.
(b)
				Replace all references to the
International Energy Conservation
				Code
(
IECC
) with references to the
Georgia
				State Minimum Standard Energy Code
(
IECC with Georgia State
				Supplements and Amendments
). The
Georgia State Minimum
				Standard Energy Code
shall be used for heating and air conditioning
				equipment.
SCOPE:
The provisions of the
International Residential Code
				  for One- and Two-family Dwellings
shall apply to the construction,
alteration
, movement, enlargement, replacement, repair,
				  equipment, use and occupancy, location, removal and demolition of detached one-
				  and two-family dwellings and townhouses separated by a 2-hour
				  fire-resistance-rated wall assembly, not more than three stories above
grade plane
in height with a separate means of egress and
				  their
accessory structures
.
Exceptions:
1. Live/work units complying with the
				requirements of Section 419 of the
International Building Code
shall be permitted to be built as one- and two-family
dwellings
or townhouses. Fire suppression required by Section
				419.5 of the
International Building Code
when constructed
				under the
International Residential Code for One- and Two-family
				Dwellings
shall conform to NFPA 13D.
2. Owner-occupied lodging houses with five or
				fewer guestrooms shall be permitted to be constructed in accordance with the
International Residential Code for One- and Two-family
				Dwellings
when equipped with a fire sprinkler system in accordance
				with NFPA 13D.
IMPORTANT NOTE
:
The intent of the GA amendments is that fire sprinklers shall
				  not be mandatory in one- and two-family dwellings. However, the provisions of
				  the 2018 Edition of the
International Residential Code for One- and
				  Two-Family Dwellings
regarding automatic fire sprinklers are to remain
				  in the Code for use when the builder/developer or owner chooses to install fire
				  sprinklers as an option.
{Ref. O.C.G.A. §
													8-2-4. Neither the state
				  residential and fire building code nor any residential and fire building code
				  adopted by a political subdivision of the state adopted after May 24, 2010,
				  shall include a requirement that fire sprinklers be installed in a
				  single-family dwelling or a residential building that contains no more than two
				  dwelling units.}
APPENDICES:
Appendices are not enforceable unless they are specifically
				  referenced in the body of the code or adopted by the Department of Community
				  Affairs or the Authority Having Jurisdiction.
*Revise the International Residential Code for One-
				  and Two-Family Dwellings, 2018 Edition, as follows:
CHAPTER 1
SCOPE AND ADMINISTRATION
*Delete Chapter 1 'Scope and Administration' without
				  substitution. Chapter 1 to remain in the Code as a reference and guide for
				  local governments to use in development of their own
Administrative
				  Procedures.
(Effective January 1, 2020)
CHAPTER 2
DEFINITIONS
SECTION R202
DEFINITIONS
*Revise Section R202 'Definitions' for "[RB] Lodging House"
				  to read as follows:
[RB] LODGING HOUSE
. A one-family dwelling with 5
				  or fewer guestrooms, where one or more occupants are primarily permanent in
				  nature, and rent is paid for guestrooms.
(Effective January 1, 2020)
*Revise Section R202 'Definitions' for "[RB] Townhouse" to
				  read as follows:
[RB] TOWNHOUSE (ROW HOUSE).
A single-family
dwelling unit
constructed in a group of three or more attached
				  units. Each unit extends from foundation to roof, not more than three stories
				  in height, with a separate means of egress, and with an open
				  space/
yard
or public way on at least two sides. Each townhouse
				  shall be considered a separate building with independent exterior walls and
				  shall be separated by a 2-hour fire-resistance-rated wall assembly.
(Effective January 1, 2020)
CHAPTER 3
BUILDING PLANNING
SECTION R302
FIRE-RESISTANT
				  CONSTRUCTION
*Revise Section R302.1 'Exterior walls' to read as
				  follows:
R302.1
Exterior walls.
Construction, projections, openings and penetrations of
exterior
				walls
of
dwellings
and accessory buildings shall
				comply with Table R302.1(1); or
dwellings
equipped throughout
				with an
automatic sprinkler system
installed in accordance
				with NFPA 13D shall comply with Table R302.1(2).
(Existing exceptions to remain as written).
(Effective January 1, 2020)
*Revise Section R302.2 'Townhouses' to read as
				  follows:
R302.2
Townhouses.
Each
townhouse
shall be considered a
				separate building and shall be separated by fire-resistance-rated wall
				assemblies meeting the requirements of Section R302.1 for exterior walls.
Exception:
A common 2-hour fire-resistance-rated
				  wall assembly tested in accordance with ASTM E 119 or UL 263 is permitted for
				  townhouses, if such walls do not contain plumbing or mechanical equipment,
				  ducts or vents in the cavity of the common wall. The wall shall be rated for
				  fire exposure from both sides and shall extend to and be tight against exterior
				  walls and the underside of the roof sheathing. Electrical installations shall
				  be installed in accordance with the National Electrical Code (NEC).
				  Penetrations of electrical outlet boxes shall be in accordance with Section
				  R302.4.
(Effective January 1, 2020)
* Delete Section R302.2.1 'Double walls' without
				  substitution.
(Effective January 1, 2020)
* Delete Section R302.2.2 'Common walls' without
				  substitution.
(Effective January 1, 2020)
*Revise Section R302.2.6 'Structural independence' to delete
				  exception #5 without substitution. (Effective January 1, 2020)
*Revise Section R302.5.1 'Opening protection' to read as
				  follows:
R302.5.1
Opening protection.
Openings from a private garage directly into a
				room used for sleeping purposes shall not be permitted. Other openings between
				the garage and residence shall be equipped with solid wood doors not less than
				1 3/8 inches (35 mm) in thickness, solid or honeycomb-core steel doors not less
				than 1 3/8 inches (35 mm) thick, or 20-minute fire rated doors. (Effective
				January 1, 2020)
*Revise Table R302.6 'DWELLING-GARAGE SEPARATION' to add a
				  new footnote "a" to read as follows:
TABLE R302.6
DWELLING-GARAGE SEPARATION
SEPARATION
MATERIAL
From the residence and attics
Not less than 1/2-inch gypsum board or equivalent
							 applied to the garage side
From all habitable rooms above the
							 garage
Not less than 5/8-inch Type X gypsum board or
							 equivalent
Structure(s) supporting floor/ceiling assemblies used
							 for separation required by this
							 sectiona
Not less than 1/2-inch gypsum board or
							 equivalent
Garages located less than 3 feet from a dwelling unit
							 on the same lot
Not less than 1/2-inch gypsum board or equivalent
							 applied to the interior side of exterior walls that are within this
							 area
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Separation of floor/ceiling assemblies is
				not required in garages protected by an automatic sprinkler system that meets
				the following criteria:
1. The sprinkler
				system shall be connected to a reliable water supply system with or without an
				automatic operated pump.
2. A
				piping system serving both sprinkler and domestic needs shall be
				acceptable.
3.
				Ordinary-temperature-rated residential or quick response sprinklers (135°F to
				170°F [57°C to 77°C]) with a 1/2-inch (13 mm) orifice shall be
				installed.
4. The minimum operating
				pressure of any residential or quick response sprinkler shall be 7 psi (0.5
				bar).
5. Walls that resist the
				passage of smoke shall separate the sprinklered compartment from any other
				space(s). Openings in this wall shall be regulated by Section R302.5.
6. The maximum area protected by a single
				sprinkler head shall not exceed 144 ft2 (13.4
				m2).
7.
				The maximum distance between sprinklers shall not exceed 12 feet (3.7
				m).
8. The maximum distance to a
				wall or partition shall not exceed 6 feet (1.8 m).
9. The minimum distance between sprinklers
				within a compartment shall be 8 feet (2.4 m).
10. Pendent and upright sprinkler heads shall
				be positioned so that the deflectors are within 1 to 4 inches (25.4 to 102 mm)
				below framing.
11. Sprinkler heads
				shall be located on a looped piping configuration.
12. Minimum pipe size, including that for
				copper, listed chlorinated polyvinyl chloride (CPVC), and polybutylene (PB)
				piping shall be 3/4-inch (19 mm).
13. Garage doors in the open position shall
				not interfere with the operation of a sprinkler head.
14. A smoke alarm detector shall be installed
				in accordance with Section R314.
(Effective January 1, 2020)
*Delete Section R302.13 'Fire protection of floors' without
				  substitution.
(Effective January 1, 2020)
SECTION R303
LIGHT, VENTILATION AND
				  HEATING
*Revise Section R303.4 'Mechanical ventilation' to read as
				  follows:
R303.4
Mechanical ventilation.
Where the air infiltration rate of a
dwelling unit
is 3 air
				changes per hour or less where tested with a blower door at a pressure of 0.2
				inch w.c. (50 Pa) in accordance with Section N1102.4.1.2, the
dwelling
				unit
shall be provided with whole-house mechanical ventilation in
				accordance with Section M1505.4.
(Effective January 1, 2020)
SECTION R306
SANITATION
*Add new Section R306.5 'Exterior hose bibs, sill cocks or
				  outside hydrants' to read as follows:
R306.5
Exterior hose bibs, sill cocks
				or outside hydrants.
One and two-family dwellings shall have not less
				than two exterior hose bibs, sill cocks or outside hydrants with one being
				located on the side or rear of the structure.
(Effective January 1, 2020)
*Add new Section R306.6 'Construction worker toilet
				  facilities' to read as follows:
R306.6
Construction worker toilet
				facilities.
Toilet facilities shall be provided for construction workers
				and such facilities shall be maintained in a sanitary condition. Construction
				worker toilet facilities of the non-sewer type shall conform to ANSI Z4.3.
(Effective January 1, 2020)
SECTION R309
GARAGES AND CARPORTS
*Delete Section R309.5 'Fire sprinklers' without
				  substitution.
(Effective January 1, 2020)
SECTION R311
MEANS OF EGRESS
*Delete Exception to Section R311.7.11 'Alternating tread
				  devices' without substitution. (Effective January 1, 2020)
SECTION R312
GUARDS AND WINDOW FALL
				  PROTECTION
*Revise the heading of Section R312 'Guards and Window Fall
				  Protection' to read as follows:
SECTION R312
GUARDS
(Effective January 1, 2020)
*Delete Section R312.2 'Window fall protection' without
				  substitution.
(Effective January 1, 2020)
SECTION R313
AUTOMATIC FIRE SPRINKLER
				  SYSTEMS
*Delete Section R313 'AUTOMATIC FIRE SPRINKLER SYSTEMS' and
				  substitute to read as follows:
SECTION R313
AUTOMATIC FIRE SPRINKLER
				  SYSTEMS
(Optional)
R313.1
Automatic fire sprinkler systems
				(Optional).
Installation of an automatic residential fire sprinkler
				system shall be optional and not mandatory in one- and two-family
dwellings
and
townhouses
.
(Effective January 1, 2020)
R313.2
Design and installation.
When installed, automatic residential fire sprinkler systems for one- and
				two-family
dwellings
and
townhouses
shall be
				designed and installed in accordance with NFPA 13D.
(Effective January 1, 2020)
*Delete any other code references to Section P2904 'Dwelling
				  unit fire sprinkler systems' and substitute NFPA 13D.
(Effective January 1, 2020)
SECTION R315
CARBON MONOXIDE ALARMS
* Revise Section R315.2.1 'New Construction' to read as
				  follows:
R315.2.1
New
				construction.
For new construction, carbon monoxide alarms shall be
				provided in dwelling units.
(Effective January 1, 2020)
SECTION R321
ELEVATORS AND PLATFORM
				  LIFTS
*Revise Section R321.1 'Elevators' and add a new Section
				  R321.1.1 'Hoistway opening framing' to read as follows:
R321.1
Elevators.
Where
				provided, limited-use and limited-application elevators or private residence
				elevators shall comply with ASME A17.1/CSA B44.
(Effective January 1, 2020)
R321.1.1
Hoistway opening
				framing.
Limited-use/limited-application elevators or private residence
				elevators shall have hoistway landing openings that meet the Georgia amended
				requirements of ASME A17.1/CSA B44 Sections 5.3.1.1 and 5.3.1.7.2. The
				clearance between the hoistway doors or gates and the hoistway edge of the
				landing sill shall not exceed 3/4 inch (19 mm). The distance between the
				hoistway face of the landing door or gate and the car door or gate shall not
				exceed 3 inches (75 mm).
(Effective January 1, 2020)
SECTION R322
FLOOD-RESISTANT
				  CONSTRUCTION
*Delete Section R322.1.9 'Manufactured homes' without
				  substitution.
(Effective January 1, 2020)
CHAPTER 5
FLOORS
SECTION R502
WOOD FLOOR FRAMING
* Revise Section R502.6 'Bearing' to read as follows:
R502.6
Bearing.
The
				ends of each joist, beam or girder shall have not less than 1 1/2 inches (38
				mm) of bearing on wood or metal, have not less than 3 inches of bearing (76 mm)
				on masonry or concrete or be supported by
approved
joist
				hangers. Alternatively, the ends of joists shall be supported on a 1-inch by
				4-inch (25 mm by 102 mm) ribbon strip and shall be nailed to the adjacent stud.
				The bearing on masonry or concrete shall be direct, or a sill plate of 2-inch
				minimum (51mm) nominal thickness shall be provided under the joist, beam or
				girder.
(Effective January 1, 2020)
SECTION R507
EXTERIOR DECKS
* Revise Figure R507.5.1(1) 'DECK BEAM TO DECK POST' to
				  include a new illustration for "Corner Beam Over Post" as follows:
Click
				  here to view image
(Effective January 1, 2020)
*Revise R507.9.1.3 'Ledger to band joist details' to read as
				  follows:
R507.9.1.3
Ledger to band joist details.
Fasteners used in deck ledger
				connections in accordance with Table R507.9.1.3(1) shall be hot-dipped
				galvanized
,
stainless steel, or other approved
				fasteners and shall be installed in accordance with Table R507.9.1.3(2) and
				Figures R507.9.1.3(1) and R507.9.1.3(2).
(Effective January 1, 2020)
*Revise Figure R507.9.1.3 (2) 'Placement of Lag Screws and
				  Bolts in Band Joists' as follows:
Click
				  here to view image
Click
				  here to view image
FIGURE R507.9.1.3(2)
PLACEMENT LAG SCREWS AND BOLTS IN BAND
				  JOISTS
(Effective January 1, 2020)
* Revise Figure R507.9.2(1) 'Deck Attachment for Lateral
				  Loads' as follows:
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				  here to view image
FIGURE R507.9.2(1)
DECK ATTACHMENT FOR LATERAL
				  LOADS
(Effective January 1, 2020)
*Revise Figure R507.9.2(2) 'Deck Attachment for Lateral
				  Loads' and as follows:
Click
				  here to view image
FIGURE R507.9.2(2)
DECK ATTACHMENT FOR LATERAL
				  LOADS
(Effective January 1, 2020)
CHAPTER 6
WALL CONSTRUCTION
SECTION R602
WOOD WALL FRAMING
*Add new exception to R602.10 'Wall bracing' to read as
				  follows:
R602.10
Wall
				bracing.
Buildings shall be braced in accordance with this section or,
				when applicable, Section R602.12. Where a building, or portion thereof, does
				not comply with one or more of the bracing requirements in this section, those
				portions shall be designed and constructed in accordance with Section R301.1.
Exception:
APA Simplified Wall Bracing Method,
				  SR-102 may be used as an alternate method of wall bracing subject to
				  limitations in document.
(Effective January 1, 2020)
CHAPTER 8
ROOF-CEILING CONSTRUCTION
SECTION R806
ROOF VENTILATION
*Delete R806.5 'Unvented attic and unvented enclosed rafter
				  assemblies' Item 5.2 without substitution.
(Effective January 1, 2020)
SECTION R807
ATTIC ACCESS
Add new Section R807.1.1 'Attic service access' to read as
				  follows:
R807.1.1
Attic
				service access.
Attics containing appliances or mechanical equipment
				service shall be accessible by pull down stairs or other permanent steps and at
				a minimum be sized to allow the removal of the largest appliance.
(Effective January 1, 2020)
CHAPTER 13
GENERAL MECHANICAL SYSTEM
				  REQUIREMENTS
SECTION M1301
GENERAL
*Revise Section M1301.2 'Identification' to read as
				  follows:
M1301.2
Identification.
Each length of pipe and tubing and each pipe
				fitting utilized in a mechanical system shall bear the identification of the
				manufacturer. If not provided on the packaging or crating or by other approved
				documentation, each pipe fitting, utilized in a gas fuel system, shall bear the
				identification of the manufacturer.
(Effective January 1, 2020)
CHAPTER 16
DUCT SYSTEMS
SECTION M1601
DUCT CONSTRUCTION
*Delete Section M1601.1.1 'Above-ground duct systems', Item 5
				  without substitution.
(Effective January 1, 2020)
*
Revise Section M1601.1.1 'Above ground duct
				  systems', Item 7.1 as follows:
M1601.1.1
Above-ground duct
				systems.
Above-ground
duct systems
shall conform to the
				following:
7. Stud wall cavities and the
				spaces between solid floor joists to be used as air plenums shall comply with
				the following conditions:
7.1 These cavities
				or spaces shall not be used as a plenum for supply or return air unless all
				such supply and return ducts are lined with metal, flex duct, duct board or
				other material that is approved in this section.
(Remainder of section unchanged.)
(Effective January 1, 2020)
CHAPTER 19
SPECIAL APPLIANCES, EQUIPMENT AND
				  SYSTEMS
SECTION M1901
RANGES AND OVENS
*Revise Section M1901.2 'Cooking appliances' to add a new
				  exception to read as follows:
M1901.2
Cooking appliances.
Cooking
appliances
shall be
listed
and
labeled
for household use and shall be installed in accordance
				with the manufacturer's instructions. The installation shall not interfere with
combustion air
or access for operation and servicing. Electric
				cooking appliances shall comply with UL 1026 or UL 858. Solid-fuel-fired
				fireplace stoves shall comply with UL 737. Microwave ovens shall comply with UL
				923.
Exception: Listed and labeled commercial cooking appliances
				  may be installed in dwelling units and domestic kitchens when designed and
				  accepted by a Georgia licensed Professional Engineer.
(Effective January 1, 2020)
CHAPTER 24
FUEL GAS
SECTION G2415 (404)
PIPING SYSTEM INSTALLATION
*Delete Section G2415.6 (404.6) 'Underground penetrations
				  prohibited' and substitute to read as follows:
G2415.6
(404.6) Piping through
				foundation wall.
Underground piping where installed below grade through
				the foundation or basement wall of a building, shall be encased in a protective
				pipe sleeve. The annular space between the gas piping and the sleeve shall be
				sealed.
(Effective January 1, 2020)
*Revise Section G2415.7.1 (404.7.1) 'Piping through bored
				  holes or notches' to read as follows:
G2415.7.1
(404.7.1) Piping through
				bored holes or notches.
Where
piping
is installed
				through holes or notches in framing members and the
piping
is
				located less than 11/2 inches (38 mm) from the framing member face to which
				wall, ceiling or floor membranes will be attached, the pipe shall be protected
				by shield plates that cover the width of the pipe and the framing member. Where
				the framing member that the
piping
passes through is a bottom
				plate, bottom track, top plate or top track, the shield plates shall cover the
				framing member and extend not less than 4 inches (102 mm) above the bottom
				framing member and not less than 4 inches (102 mm) below the top framing
				member.
(Effective January 1, 2020)
*Delete Section G2415.7.2 (404.7.2) 'Piping installed in
				  other locations' without substitution. (Effective January 1, 2020)
*Delete Section G2415.11.1 (404.11.1) 'Galvanizing' without
				  substitution: (Effective January 1, 2020)
*Revise Section G2415.18 (404.18) 'Pipe Cleaning' to read as
				  follows:
G2415.18
(404.18) Pipe debris removal.
The interior of piping shall be
				clear of debris. The use of a flammable or combustible gas to clean or remove
				debris from a
piping system
shall be prohibited.
(Effective January 1, 2020)
SECTION G2420 (409)
SHUTOFF VALVES
*Add new Section G2420.2.1 (409.2.1) 'System shutoff valve'
				  to read as follows:
G2420.2.1
(409.2.1) System Shutoff
				Valve.
Where the point of delivery is the outlet of the service meter
				assembly, or the outlet of the service regulator, a system shutoff valve shall
				be installed. Such valve is considered to be part of the customer piping
				system.
(Effective January 1, 2020)
SECTION G2423 (413)
COMPRESSED NATURAL GAS MOTOR VEHICLE
				  FUEL-DISPENSING FACILITIES
*Delete Section G2423.1 (413.1) 'General' and substitute to
				  read as follows:
G2423.1
(413.1) General.
Under Georgia law, the Rules and Regulations of
				the Georgia Safety Fire Commissioner govern the storage, delivery and
				dispensing of compressed natural gas. Refer to the Rules and Regulations of the
				Georgia Safety Fire Commissioner and NFPA 52 for all requirements concerning
				compressed natural gas motor vehicle fuel-dispensing stations.
(Effective January 1, 2020)
*
Add new APPENDIX Q 'TINY HOUSES' to read as
				  follows:
APPENDIX Q
TINY HOUSES
(The provisions contained in this appendix are not
				  mandatory unless specifically referenced in the adopted
				  ordinance.)
SECTION AQ101
GENERAL
AQ101.1
Scope.
This appendix
				shall be applicable to
tiny houses
used as single dwelling
				units.
Tiny houses
shall comply with this code except as
				otherwise stated in this appendix.
APPENDIX AQ102
DEFINITIONS
AQ102.1
General.
The following
				words and terms shall, for the purposes of this appendix, have the meanings
				shown herein. Refer to Chapter 2 of this code for general definitions.
EGRESS ROOF ACCESS WINDOW.
A
skylight
or roof window designed and installed to satisfy the
				  emergency escape and rescue opening requirements in Section R310.2.
LANDING PLATFORM.
A landing provided as the top
				  step of a stairway accessing a
loft
.
LOFT.
A floor level located more than 30 inches
				  (762 mm) above the main floor, open to the main floor on one or more sides with
				  a ceiling height of less than 6 feet 8 inches (2032 mm) and used as a living or
				  sleeping space.
LOFT.
A floor level located more than 30 inches
				  (762 mm) above the main floor, and open to it on at least one side with a
				  ceiling height of a maximum of 5 feet, used as a living or sleeping
				  space.
TINY HOUSE.
A dwelling that is 400 square feet
				  (37 m2) or less in floor area excluding
lofts
.
SECTION AQ103
CEILING HEIGHT
AQ103.1
Minimum ceiling height.
Habitable space
and hallways in
tiny houses
shall have a finished ceiling height of not less than 6 feet 8 inches (2032
				mm). Bathrooms, toilet rooms and kitchens shall have a ceiling height of not
				less than 6 feet 4 inches (1930 mm). Obstructions including, but not limited
				to, beams, girders, ducts and lighting, shall not extend below these minimum
				ceiling heights including beams, girders, ducts, lighting and other
				obstructions.
Exception:
Ceiling heights in
lofts
are permitted to be less than 6 feet 8 inches (2032 mm)
				  a maximum of 5 feet (1524 mm).
SECTION AQ104
LOFTS
AQ104.1
Minimum loft area and
				dimensions.
Lofts
used as a sleeping or living space
				shall meet the minimum area and dimension requirements of Sections AS104.1.1
				through AS104.1.3.
AQ104.1.1
Minimum
				area.
Lofts
shall have a floor area of not less than 35
				square feet (3.25 m2).
AQ104.1.2
Minimum dimensions.
Lofts
shall be not less than 5 feet (1524 mm) in any
				horizontal dimension.
AQ104.1.3
Height effect on loft area.
Portions of a
loft
with a sloped ceiling measuring less than 3 feet (914 mm) from the finished
				floor to the finished ceiling shall not be considered as contributing to the
				minimum required area for the loft.
Exception
: Under gable roofs with a minimum
				  slope of 6:12, portions of a
loft
with a sloped ceiling
				  measuring less than 16 inches (406 mm) from the finished floor to the finished
				  ceiling shall not be considered as contributing to the minimum required area
				  for the
loft
.
AQ104.2
Loft access.
The access
				to and primary egress from
lofts
shall be any type described
				in Sections AQ104.2.1 through AQ104.2.4.
AQ104.2.1
Stairways.
Stairways
				accessing
lofts
shall comply with this code or with Sections
				AQ104.2.1.1 through AQ104.2.1.6.
AQ104.2.1.1
Width.
Stairways accessing a
loft
shall not be
				less than 17 inches (432 mm) in clear width at or above the handrail. The
				minimum width below the handrail shall be not less than 20 inches (508
				mm).
AQ104.2.1.2
Headroom.
The headroom in stairways accessing a
loft
shall be not less than 6 feet 2 inches (1880 mm), as
				measured vertically, from a sloped line connecting the tread or landing
				platform nosings in the middle of their width.
AQ104.2.1.3
Treads and risers.
Risers for stairs accessing a
loft
shall be not less than 7
				inches (178 mm) and not more than 12 inches (305 mm) in height. Tread depth and
				riser height shall be calculated in accordance with one of the following
				formulas:
1. The tread depth shall be 20
				inches (508 mm) minus 4/3 of the riser height, or
2. The riser height shall be 15 inches (381
				mm) minus 3/4 of the tread depth.
AQ104.2.1.4
Landing platforms.
The top tread and riser of stairways accessing
lofts
shall be
				constructed as a
landing platform
where the
loft
ceiling height is less than 6 feet 2 inches (1880 mm)
				where the stairway meets the
loft
. The
landing
				platform
shall be 18 inches to 22 inches (457 to 559 mm) in depth
				measured from the nosing of the landing platform to the edge of the
loft
, and 16 to 18 inches (406 to 457 mm) in height measured
				from the
landing platform
to the
loft
floor.
AQ104.2.1.4.1
Landing platform
				guards.
Guards at the open side of landing platforms shall comply with
				Section R312.1 or shall be at least as high as the loft guard; whichever is
				greater.
AQ104.2.1.5
Handrails.
Handrails shall comply with Section R311.7.8.
AQ104.2.1.6
Stairway guards.
Guards at open sides of stairways shall comply with Section
				R312.1.
AQ104.2.2
Ladders.
Ladders accessing
lofts
shall comply
				with Sections AS104.2.2.1 and AS104.2.2.2.
AQ104.2.2.1
Size and capacity.
Ladders accessing
lofts
shall have a rung width of not less
				than 12 inches (305 mm), and 10 inches (254 mm) to 14 inches (356 mm) spacing
				between rungs. Ladders shall be capable of supporting a 300-pound (75 kg) load
				on any rung. Rung spacing shall be uniform within 3/8 inch (9.5 mm).
AQ104.2.2.2
Incline.
Ladders
				shall be installed at 70 to 80 degrees from horizontal.
AQ104.2.3
Ships ladders.
Ships
				ladders accessing
lofts
shall have a minimum tread depth of 5
				inches (127 mm). The tread shall be projected such that the total of the tread
				depth plus the nosing projection is no less than 8 1/2 inches (216 mm). The
				maximum riser height shall be 9 1/2 inches (241 mm). Handrails shall be
				provided on both sides of ship ladders and shall comply with Section R311.7.8.
				Handrail height shall be uniform, not less than 30 inches (762 mm) and not more
				than 34 inches (864). The clear width at and below handrails shall be not less
				than 20 inches (508 mm). Compliant ship ladders may also access additional
				stories of a tiny house.
AQ104.2.4
Loft guards.
Loft
guards shall be located along
				the open side of
lofts
.
Loft
guards shall not
				be less than 36 inches (914 mm) in height or one-half of the clear height to
				the ceiling, whichever is less, but no less than 18 inches.
SECTION AQ105
EMERGENCY ESCAPE AND RESCUE
				  OPENINGS
AQ105.1
General.
Tiny houses
shall meet the requirements
				of Section R310 for emergency escape and rescue openings.
Exception:
Egress roof access
				  windows
in
lofts
used as sleeping rooms shall be
				  deemed to meet the requirements of Section R310 where installed such that the
				  bottom of the opening is not more than 44 inches (1118 mm) above the
loft
floor, provided the
egress roof access
				  window
complies with the minimum opening area requirements of Section
				  R310.2.1
.
SECTION AQ106
SMOKE AND CARBON MONOXIDE
				  DETECTORS
AQ106.1
SMOKE AND CARBON MONOXIDE DETECTORS.
Smoke and carbon monoxide
				detectors shall be installed as required in Sections R314 and R315 and on the
				ceiling directly underneath any loft and just below the highest point of any
				loft.
(Effective January 1, 2020)
APPENDIX U
DISASTER RESILIENT
				  CONSTRUCTION
*The Department of Community Affairs hereby adopts Appendix U
				  'Disaster Resilient Construction' as optional. This document is available to
				  download free from DCA's webpage at:
https://dca.ga.gov/sites/default/files/appendix_u_-_irc_-_final_5-21-2018rev1.pdf
(Effective January 1, 2020)
Click
				  here to view image
GEORGIA STATE INTERNATIONAL RESIDENTIAL
				  CODE
APPENDIX U
DISASTER RESILIENT
				  CONSTRUCTION
The INTERNATIONAL RESIDENTIAL CODE, 2018
				  Edition, published by the International Code Council, when used in conjunction
				  with the Georgia State Amendments to the INTERNATIONAL RESIDENTIAL CODE, 2018
				  Edition and Appendix U Disaster Resilient Construction, shall constitute the
				  official
Georgia State Minimum Standard Residential
				  Code.
FORWARD
Introduction
The Department of Community Affairs (DCA) was awarded a grant
				  through the U.S. Department of Housing and Urban Development (HUD) to develop
				  Disaster Resilient Building Code (DRBC) Appendices for the International
				  Building Code (IBC) and the International Residential Code (IRC). The DRBC
				  Appendices are optional regulations that local jurisdictions may adopt, in
				  whole or in part, through local ordinance. A task force of stakeholders was
				  appointed to look for opportunities to improve any code provisions relating to
				  damage from hurricane, flood, and tornado disasters. In addition to the
				  approved recommendations from the task force, the state has developed and will
				  conduct a comprehensive training program for code enforcement officials on the
				  importance, implementation and enforcement of the Disaster Resilient
				  Construction Appendices.
The meetings for the Disaster Resilient Building Code
				  Appendices Task Force were open to the public, interested individuals and
				  organizations that desired participation. The technical content of currently
				  published documents on flooding, high-wind construction, and storm shelters,
				  were used and referenced. Those publications included documents of the
				  International Code Council (ICC), American Society of Civil Engineers (ASCE),
				  the Federal Emergency Management Agency (FEMA), Mitigation Assessment Team
				  (MAT) Program, Georgia Emergency Management Agency/Homeland Security (GEMA),
				  APA - The Engineered Wood Association, National Institute of Standards and
				  Technology (NIST), National Oceanic and Atmospheric Administration (NOAA),
				  National Science Foundation (NSF), The State of Florida, American Forest &
				  Paper Association's American Wood Council, Southern Forest Products
				  Association, NAHB Research Center, Insurance Institute for Business & Home
				  Safety, and the Federal Alliance for Safe Homes.
Adoption
Local jurisdictions may adopt this entire appendix with
				  chosen options or specific sections that apply to their communities through a
				  local ordinance. The adopting ordinance must also be filed on record with DCA.
				  A sample ordinance has been included in this document to assist the local
				  jurisdictions with the adoption process. Recommended training is being offered
				  to assist code enforcement officials in the implementation and enforcement of
				  the appendices documents. Contact DCA at (404) 679-3118 or
www.dca.ga.gov
for more
				  information.
Neither The Disaster Resilient Building Code Appendices Task
				  Force, its members nor those participating in the development of Appendix U
				  Disaster Resilient Construction accept any liability resulting from compliance
				  or noncompliance with the provisions of Appendix U Disaster Resilient
				  Construction.
The 2012 Disaster Resilient Building Code (DRBC)
				  Appendices Task Force
was charged with the development of two
				  appendices. One appendix is for the International Residential Code and the
				  other appendix is for the International Building Code. These two appendices
				  look for opportunities to improve any provisions relating to hurricane, flood,
				  and tornado disasters. In addition to improving existing provisions in the
				  codes, the task force also developed new provisions to be included in the
				  appendices that address these issues. These appendices contain increased
				  construction requirements for disaster resilience and are intended to be made
				  available for adoption by local jurisdictions in the State of Georgia.
These appendices have reasonable and substantial connection
				  with the public health, safety, and general welfare. In addition, the financial
				  impact and costs associated with these appendices have been taken into
				  consideration.
Members:
Mr. Gregori Anderson, Chairman
, States Codes
				  Advisory Committee (SCAC)
Mr. David L. Adams, Vice Chairman
, States Codes
				  Advisory Committee (SCAC)
Mr. Bill Abballe, AIA
, American Institute of
				  Architects (AIA) - Georgia Chapter
Mr. John Hutton, P.E., S.E.
, American Council of
				  Engineering Companies of Georgia (ACEC/G)
Mr. Ron Anderson
, Code Consultant
Mr. Lamar Smith
, Home Builders Association of
				  Georgia (HBAG)
Mr. Thomas Harper
, Georgia State Inspectors
				  Association (GSIA)
Mr. Tom Buttram
, Building Officials Association
				  of Georgia (BOAG)
Capt. Zane Newman
, Georgia State Fire Marshal's
				  Office (Local Fire Official)
Mr. Terry Lunn
, Georgia Emergency Management
				  Agency (GEMA)
Mr. Alan Giles
, CFM, Georgia Department of
				  Natural Resources (EPD / Floodplain Management Unit)
Mr. Tony Hebert
, HUD Georgia State
				  Representative (Region IV Office)
Mr. Jim C. Beck, Sr.
, Georgia Underwriting
				  Association
Mr. Tim Thornton
, Georgia Association of
				  Realtors (GAR)
Mr. Steve Harrison
, Building Owners and Managers
				  Association - Georgia (BOMA)
Mr. Tom Aderhold
, Georgia Apartment Association
				  (GAA)
Mr. Tim Bromley
, Accessibility Consultant -
				  Georgia State ADA Coordinator's Office
Mayor Mark Mathews
, Georgia Municipal
				  Association (GMA)
Commissioner Jeff Long
, Association of County
				  Commissioners of Georgia (ACCG)
Ad Hoc Subcommittee:
Mr. Tom Buttram, Chairman
, DRBC Task Force
				  Liaison (BOAG)
Mr. Ron Anderson, Vice Chairman
, Code
				  Consultant
Mr. Stephen V. Skalko
, P.E. Concrete
				  Industry
Mr. Jeffrey B. Stone
, PhD., Wood Industry
				  (AWC)
Mr. Robert Wills
, Steel Industry (AISC)
Mr. Tom Cunningham, PhD.
, Residential Building
				  Design
Mr. Duncan J. Hastie, P.E.
, Disaster
				  Mitigation
DCA Staff:
Mr. Ted Miltiades
, Director of Construction
				  Codes & Industrialized Buildings
Mrs. Deirdre "Dee" Leclair
, DRBC Grant Project
				  Manager
Mr. Max Rietschier
, Lead Codes Consultant
Mr. Bill Towson
, 2012 International Residential
				  Code Task Force Liaison, Code Consultant
Mr. Calvin Jordan
, 2012 International Building
				  Code Task Force Liaison, Code Consultant
How to Use
Appendix U Disaster Resilient
				  Construction
The appendix may be adopted in whole or in part by Local
				  Jurisdictions to fit the needs of their community. The following sample
				  ordinance has been provided to aid in the process of identifying Chapters and
				  Sections of the appendix that may be adopted. The format easily allows for
				  choosing to adopt, revise or delete individual Chapters and Sections. Download
				  the MS Word (.doc) version from the DCA website to take advantage of the
				  dropdown menu choices and edit ability features of the document. Note that in
				  Chapter 3, choose one of three options for flood elevation. Only one option may
				  be chosen and that option must be higher than what has been previously adopted
				  and enforced by your jurisdiction. Also note that in Chapter 4, choose one of
				  four options for increased wind speed. Only one option may be chosen and that
				  option must be higher than the mapped wind speed shown in the International
				  Residential Code. The Sample Ordinance document takes into account the flood
				  elevation option in Chapter 3 and the wind speed option in Chapter 4 of this
				  appendix.
SAMPLE ORDINANCE FOR ADOPTION
				  OF
GEORGIA STATE INTERNATIONAL RESIDENTIAL
				  CODE
APPENDIX U
DISASTER RESILIENT
				  CONSTRUCTION
ORDINANCE NO. ___________
An ordinance of the
[JURISDICTION]
adopting the
				  latest edition as adopted and amended by the Georgia Department of Community
				  Affairs of
Appendix U Disaster Resilient Construction
regulating and governing the mitigation of hazard to life and property from
				  natural weather related disasters, high-wind damages, flooding, and
				  establishing construction standards for storm shelters in the
[JURISDICTION]
; providing for the issuance of permits and
				  collection of fees therefore; repealing Ordinance No. of the
[JURISDICTION]
and all other ordinances or parts of the laws in
				  conflict therewith.
The
[GOVERNING BODY]
of the
[JURISDICTION]
does ordain as follows:
Section 1. That a certain document, three (3)
				copies of which are on file in the office of the
[TITLE OF JURISDICTION'S
				KEEPER OF RECORDS]
of
[NAME OF JURISDICTION]
, being marked
				and designated as
Appendix U Disaster Resilient Construction
to the International Residential Code, the latest edition as adopted and
				amended by the Georgia Department of Community Affairs, be and is adopted as
				the
Appendix U Disaster Resilient Construction
of the
[JURISDICTION]
, in the State of Georgia for regulating and
				governing the mitigation of hazard to life and property from natural weather
				related disasters, high-wind damages, flooding, and establishing construction
				standards for storm shelters; providing for the issuance of permits and
				collection of fees therefore; and each and all of the regulations, provisions,
				penalties, conditions and terms of said
Appendix U Disaster Resilient
				Construction
on file in the office of the
[JURISDICTION]
are hereby referred to, adopted, and made a part hereof, as if fully set out in
				this ordinance, with the additions, insertions, deletions and changes, if any
				prescribed in Section 2 of this ordinance.
Section 2. [NAME Of JURISDICTION] hereby:
Choose an item. CHAPTER AU1 SCOPE AND ADMINISTRATION Choose
				  an item.
Choose an item. SECTION AU101 ADMINISTRATION Choose an
				  item.
Choose an item. AU101.1 Purpose Choose an item.
Choose an item. AU101.2 Objectives Choose an item.
Choose an item. AU101.3 Scope Choose an item.
AU101.3.1 Insert [Name Of Jurisdiction] for [NAME OF
				  JURISDICTION].
Choose an item. AU101.4 Violations Choose an item.
Insert [Name Of Jurisdiction] for [NAME OF
				  JURISDICTION].
Choose an item. SECTION AU102 APPLICABILITY Choose an
				  item.
Choose an item. AU102.1 General Choose an item.
Choose an item. AU102.2 Other laws Choose an item.
Choose an item. AU102.3 Referenced codes and standards Choose
				  an item.
Choose an item. SECTION AU103 POST DISASTER EVENT INSPECTIONS
				  GUIDLINES Choose an item.
Choose an item. AU103.1 Inspections Choose an item.
Choose an item. AU103.1.1 Right of entry Choose an
				  item.
Choose an item. AU103.2 Types of inspections Choose an
				  item.
Choose an item. AU103.3 Post disaster building safety
				  evaluation chart Choose an item.
Choose an item. Figure AU103.3 Post Disaster Building Safety
				  Evaluation Chart Choose an item.
Choose an item. AU103.4 Evaluation forms Choose an
				  item.
Insert [Name Of Jurisdiction] for [NAME OF
				  JURISDICTION].
Choose an item. AU103.5 Placement and remove of placards
				  Choose an item.
Choose an item. CHAPTER AU2 DEFINITIONS Choose an
				  item.
Choose an item. SECTION AU201 GENERAL Choose an item.
Choose an item. AU201.1 Scope Choose an item.
Choose an item. AU201.2 Terms defined in other codes Choose
				  an item.
Choose an item. AU201.3 Terms not defined Choose an
				  item.
Choose an item. SECTION AU202 DEFINITIONS Choose an
				  item.
Choose an item. CHAPTER AU3 FLOOD-RESISTANT CONSTRUCTION
				  Choose an item.
Choose an item. SECTION AU301 HAZARD IDENTIFICATION Choose an
				  item.
Choose an item. AU301.1 Identification of flood hazard areas
				  Choose an item.
Insert [Name Of Jurisdiction] for [NAME OF
				  JURISDICTION].
Insert [Date] for [INSERT DATE ISSUANCE].
Choose an item. SECTION AU302 SCOPE Choose an item.
Choose an item. AU302.1 Flood loads Choose an item.
Choose an item. FLOOD ELEVATION OPTION Choose an item. Choose
				  an item.
Choose an item. SECTION AU303 FLOOD DAMAGE-RESISTANT
				  MATERIALS Choose an item.
Choose an item. AU303.1 Flood damage-resistant materials
				  Choose an item.
Choose an item. AU303.2 Location of flood damage-resistant
				  materials Choose an item.
Choose an item. AU303.3 Fasteners and connectors used for
				  flood-resistant materials Choose an item.
Choose an item. CHAPTER AU4 HIGH-WIND RESISTIVE CONSTRUCTION
				  Choose an item.
Choose an item. SECTION AU401 GENERAL Choose an item.
Choose an item. AU401.1 Scope Choose an item.
Choose an item. AU401.2 Continuous load path Choose an
				  item.
Choose an item. AU401.3 Adoption of wind speed Choose an
				  item.
[Name Of Jurisdiction] adopts Option Choose an item.
Choose an item. SECTION Choose an item. Choose an
				  item.
Choose an item. SECTION AU406 FASTENERS AND CONNECTIONS FOR
				  CLADDING Choose an item.
Choose an item. AU406.1 Fasteners and connectors for cladding
				  Choose an item.
Choose an item. SECTION AU407 FENESTRATION Choose an
				  item.
Choose an item. AU407.1 Design pressure Choose an
				  item.
Choose an item. AU407.2 Anchorage methods Choose an
				  item.
Choose an item. SECTION AU408 ROOFING Choose an item.
Choose an item. AU408.1 Secondary water barrier Choose an
				  item.
Choose an item. AU408.2 Fasteners Choose an item.
Choose an item. AU408.3 Attachment Choose an item.
Choose an item. CHAPTER AU5 RESIDENTIAL STORM SHELTERS AND
				  SAFE ROOMS Choose an item.
Choose an item. SECTION AU501 GENERAL Choose an item.
Choose an item. AU501.1 General Choose an item.
Choose an item. SECTION AU502 RESIDENTIAL STORM SHELTERS AND
				  SAFE ROOMS Choose an item.
Choose an item. AU502.1 Residential storm shelters Choose an
				  item.
Choose an item. AU502.2 Residential safe rooms Choose an
				  item.
Section 3. That
				Ordinance No. ____ of
[JURISDICTION]
entitled
[FILL IN HERE
				THE COMPLETE TITLE OF THE LEGISLATION OR LAWS IN EFFECT AT THE PRESENT TIME SO
				THAT THEY WILL BE REPEALED BY DEFINITE MENTION]
and all other ordinances
				or parts of laws in conflict herewith are hereby repealed.
Section 4. That if any section, subsection,
				sentence, clause or phrase of this ordinance is, for any reason, held to be
				unconstitutional, such decision shall not affect the validity of the remaining
				portions of this ordinance. The
[GOVERNING BODY]
hereby declares
				that it would have passed this law, and each section, subsection, clause or
				phrase thereof, irrespective of the fact that any one or more sections,
				subsections, sentences, clauses and phrases be declared
				unconstitutional.
Section 5. That
				nothing in this ordinance or in
Appendix U Disaster Resilient
				Construction
hereby adopted shall be construed to affect any suit or
				proceeding impending in any court, or any rights acquired, or liability
				incurred, or any cause or causes of action acquired or existing under any act
				or ordinance hereby repealed as cited in Section 3 of this ordinance; nor shall
				any just or legal right or remedy of any character be lost, impaired or
				affected by this ordinance.
Section
				6. That the
[JURISDICTION'S KEEPER OF RECORDS]
is
				hereby ordered and directed to cause this ordinance to be published. (An
				additional provision may be required to direct the number of times the
				ordinance is to be published and to specify that it is to be in a newspaper in
				general circulation. Posting may also be required.)
Section 7. That this ordinance and the rules,
				regulations, provisions, requirements, orders and matters established and
				adopted hereby shall take effect and be in full force and effect
[TIME
				PERIOD]
from and after the date of its final passage and
				adoption.
Section 8. Chapter AU6
				Resources of this document is intended to be used by the building officials as
				a resource guide.
TABLE OF CONTENTS
CHAPTER AU1 Scope and Administration
				  ..................... 8
Section
AU101 Administration ..................... 8
AU102 Applicability ..................... 8
AU103 Post Disaster Event Inspections Guidelines
				  ..................... 9
CHAPTER AU2 Definitions .....................
				  11
Section
AU201 General ..................... 11
AU202 Definitions ..................... 11
CHAPTER AU3 Flood-resistant Construction.
				  ..................... 12
Section
AU301 Hazard Identification ..................... 12
AU302 Scope ..................... 12
AU303 Flood Damage-Resistant Materials .....................
				  12
CHAPTER AU4 High-wind Resistive Construction
				  ..................... 13
Section
AU401 General ..................... 13
AU402 Option A - Minimum Wind Speed 100 MPH
				  ..................... 13
AU403 Option B - Minimum Wind Speed 110 MPH
				  ..................... 19
AU404 Option C - Minimum Wind Speed 120 MPH
				  ..................... 19
AU405 Option D - Minimum Wind Speed 130 MPH
				  ..................... 19
AU406 Fasteners and Connectors for Cladding
				  ..................... 19
AU407 Fenestrations
				  .......................................... 19
AU408 Roofing ..........................................
				  20
CHAPTER AU5 Residential Storm Shelters and Safe Rooms
				  .......................................... 21
Section
AU501 General ..........................................
				  21
AU502 Residential Storm Shelters and Safe Rooms
				  .......................................... 21
CHAPTER AU6 Resources
				  .......................................... 22
Section
AU601 Contacts ..........................................
				  22
AU602 Emergency Inspection Kit
				  .......................................... 22
AU603 Safety Tips ..........................................
				  23
AU604 Major Disaster Process
				  .......................................... 23
AU605 Sample Evaluation Forms and Inspected Placards
				  .......................................... 23
CHAPTER AU7 References
				  .......................................... 30
INDEX OF FIGURES
				  .......................................... 30
APPENDIX U
DISASTER RESILIENT
				  CONSTRUCTION
CHAPTER AU1
SCOPE AND ADMINISTRATION
SECTION AU101
ADMINISTRATION
AU101.1
Purpose.
The scope of
				this appendix is to promote enhanced public health, safety and general welfare
				and to reduce public and private property losses due to hazards and natural
				disasters associated with flooding, high-winds, and windborne debris above that
				which is provided in the general provisions of this appendix.
AU101.2
Objectives.
The
				objectives of this appendix are to:
1. Protect
				human life, to minimize property loss and to minimize the expenditures of
				public money associated with natural weather related disasters, including
				flooding, tornadoes and other high-wind events.
2. Establish enhanced design and construction
				regulations consistent with nationally recognized good practices for the
				safeguarding of life and property.
AU101.3
Scope.
AU101.3.1 The provisions of this appendix are
				not mandatory unless specifically referenced in an adopting ordinance of
[NAME OF JURISDICTION]
. If adopted, the provisions shall apply to
				all new development and to substantial improvements to existing
				development.
AU101.3.2 The
				provisions of this appendix supplement the jurisdiction's building codes to
				provide for enhanced provisions to mitigate the hazard to life and property
				from natural weather related disasters, including flooding, tornadoes and other
				high-wind events.
AU101.3.3 The
				provisions of this appendix establish design and construction standards for
				storm shelters.
AU101.4
Violations.
Any violation of a provision of this appendix or
				failure to comply with a permit of variance issued pursuant to this appendix or
				any requirement of this appendix shall be handled in accordance with the
				ordinances of
[NAME OF JURISDICTION]
.
SECTION AU102
APPLICABILITY
AU102.1
General.
This appendix
				provides enhanced minimum requirements for development of new construction and
				substantial improvement of existing development above that contained in the
International Residential Code
(IRC).
AU102.1.1 Regardless of the category of work
				being performed, the work shall not cause the structure to become unsafe or
				adversely affect the performance of the building; shall not cause an existing
				mechanical or plumbing system to become unsafe, hazardous, insanitary or
				overloaded; and unless expressly permitted by these provisions, shall not make
				the building any less compliant with this appendix or to any previously
				approved alternative arrangements than it was before the work was
				undertaken.
AU102.1.2 Where there
				is a conflict between a requirement of the
International Residential
				Code
and a requirement of this appendix, the requirement of this
				appendix shall govern. Where there is a conflict between a general requirement
				of this appendix and a specific requirement of this appendix, the specific
				requirement shall govern. Where, in any specific case, different sections of
				this appendix specify different materials, methods of construction or other
				requirements, the most restrictive shall govern.
AU102.2
Other laws
. The
				provisions of this appendix shall not be deemed to nullify any provisions of
				local, state or federal law.
AU102.3
Referenced codes and
				standards.
The codes and standards referenced in this appendix shall be
				those that are listed in Chapter AR7 and such codes and standards shall be
				considered as part of the requirements of this appendix to the prescribed
				extent of each such reference. Where differences occur between provisions this
				appendix and references and standards, the provisions of this appendix shall
				apply.
SECTION AU103
POST DISASTER EVENT INSPECTIONS
				  GUIDELINES
AU103.1
Inspections.
The building official or agents shall inspect
				residential buildings and structures to determine the habitability of each with
				the goal of getting the community back into their residences quickly and
				safely. Inspections shall always be performed by teams of at least two
				individuals, also known as disaster assessment teams.
AU103.1.1
Right of entry.
Unless
				permitted under the exigent circumstances provisions or from an order from
				State or Federal Authorities, disaster assessment teams shall confirm the right
				of entry requirements with the incident commander. Upon approval, the
				assessment teams shall be authorized to enter the structure or premises at
				reasonable times to inspect or perform duties as provided by this code,
				provided that the structure or premises be occupied, that credentials are
				presented, that entry is requested, and that entry is granted by the owner or
				person having charge over the structure or premises.
AU103.2
Types of inspections.
AU103.2.1
Rapid evaluation.
Rapid evaluation is performed after a disaster event to determine if a building
				is apparently safe or obviously unsafe. The evaluation should last 10 to 30
				minutes per building and shall be performed by the building official and/or
				their designated responders. Evaluation shall determine if a detailed
				evaluation is necessary. Placards are posted on buildings indicating status as
				one of the following:
1. INSPECTED
2. RESTRICTED USE
3. UNSAFE
See Section AU605 for Placards that may be reproduced for use
				  in the field during evaluations. The jurisdiction shall alter placards to meet
				  the jurisdiction and building department's requirements.
AU103.2.2
Detailed
				evaluation.
Detailed evaluation is a thorough visual examination of a
				damaged building performed by a team of two, including an inspector and a
				design professional. Evaluation should last 30 minutes to 4 hours per building.
				Evaluation shall determine necessary restrictions on a damaged building's use,
				the need for an engineering evaluation or to evaluate postings.
AU103.2.3
Engineering
				evaluation
. When indicated by the building official as necessary,
				engineering evaluations shall be completed by a registered design professional
				hired by the building owner.
AU103.3
Post disaster building safety
				evaluation Chart.
See Figure AU103.3 for Post Disaster Building Safety
				Evaluation Chart.
AU103.4
Evaluation forms.
ATC-45 Rapid Evaluation Safety
				Assessment Form
and
ATC-45 Detailed Evaluation Safety
				Assessment Form
shall be used by
[NAME OF JURISDICTION]'s
Building Official for post disaster inspections. See Section AU605 for copies
				of the Safety Assessment Forms.
AU103.5
Placement and removal of
				placards.
AU103.5.1
Placement.
Placards are to be posted in a clearly visible location
				near the main entrance and shall be visible from the public right-of-way. In
				addition RESTRICTED USE or UNSAFE placards shall be placed at all
				entrances.
AU103.5.2
Removal.
Placards shall not be removed or replaced, except by the
				authorized representatives of the local jurisdiction.
Figure AU103.3 Post Disaster Building
				  Safety Evaluation Chart a
Click
				  here to view image
(a)
When Disaster
				  Strikes
by the International Code Council, Inc., Seventh Printing:
				  November 2011, copyright 2007
CHAPTER AU2
DEFINITIONS
SECTION AU201
GENERAL
AU201.1
Scope.
Unless otherwise
				expressly stated the following words and terms shall, for the purposes of this
				appendix, have the meanings shown in this chapter.
AU201.2
Terms defined in other
				codes.
Where terms are not defined in this appendix and are defined in
				other
International Codes
, such terms shall have the meanings
				ascribed to them as in those codes.
AU201.3
Terms not defined.
Where
				terms are not defined through the methods authorized by this section, such
				terms shall have their ordinarily accepted meanings such as the context
				implies.
SECTION AU202
DEFINITIONS
500-YEAR FLOOD.
Flood having a 0.2% annual
				  probability of being equaled or exceeded.
ADVISORY BASE FLOOD ELEVATION (ABFE).
An advisory base flood elevation (BFE) issued by the Federal
				  Emergency Management Agency (FEMA) that reflects post-storm conditions and
				  vulnerability to damages from future flooding.
BASE FLOOD.
Flood having a 1% chance of being
				  equaled or exceeded in any given year, also referred to as the 100-year
				  flood.
BASE FLOOD ELEVATION (BFE).
The elevation of
				  flooding, including wave height, having a 1% chance of being equaled or
				  exceeded in any given year established relative to the National Geodetic
				  Vertical Datum (NGVD), North American Vertical Datum (NAVD) or other datum
				  specified on the
Flood Insurance Rate Map
(FIRM).
BUILDING OFFICIAL.
The officer or other
				  designated authority charged with the administration and enforcement of the
International Residential Code
, or the building official's
				  duly authorized representative.
DESIGN FLOOD.
The greater of the following two
				  flood events:
(1) The
base
				flood
, affecting those areas identified as
special flood
				hazard areas
on the community's FIRM;
(2) The flood corresponding to the area
				designated as a
flood hazard area
on a community's
flood hazard map
or otherwise legally designated.
DESIGN FLOOD ELEVATION (DFE)
. The elevation of
				  the
design flood
, including wave height, relative to the datum
				  specified on the community's legally designated flood hazard map. In areas
				  designated as Zone AO, the
design flood elevation
shall be the
				  elevation of the highest existing grade of the building's perimeter plus the
				  depth number (in feet) specified on the flood hazard map.
FLOOD [DAMAGE]-RESISTANT MATERIAL.
Any building
				  product [material, component or system] capable of withstanding direct and
				  prolonged contact with floodwaters without sustaining significant
				  damage.
FLOOD HAZARD AREA.
The area subject to flooding
				  during the
design flood
.
FLOOD HAZARD MAP.
Map delineating
flood
				  hazard areas
adopted by the authority having jurisdiction.
FLOOD INSURANCE RATE MAP (FIRM).
An official map
				  of a community on which the Federal Emergency Management Agency (FEMA) has
				  delineated both the
special flood hazard areas
and the risk
				  premium zones applicable to the community.
FREEBOARD
. A factor of safety expressed in feet
				  above a flood level for purposes of floodplain management.
FUTURE-CONDITIONS FLOOD.
The flood having a 1%
				  chance of being equaled or exceeded in any given year based on
				  future-conditions hydrology. Also known as the 100-year future-conditions
				  flood.
FUTURE-CONDITIONS FLOOD ELEVATION.
The flood
				  standard equal to or higher than the Base Flood Elevation. The
				  future-conditions flood elevation is defined as the highest water surface
				  anticipated at any given point during the future-conditions flood.
CHAPTER AU3
FLOOD-RESISTANT
				  CONSTRUCTION
Forward: This appendix provides three different
				  options for increased freeboard. The jurisdiction may pick only one option that
				  is higher than previously adopted and enforced by the jurisdiction. The
				  National Flood Insurance Program (NFIP) minimum standards reference Base Flood
				  Elevation without any freeboard in high risk flood hazard areas. Due to the
				  flood damage prevention updates performed during the Map Modernization
				  initiative that led to flood risks being digitally identified in all 159
				  Georgia counties, all Georgia NFIP participating communities have freeboard
				  standards that meet or exceed the 1 foot standard used in the State model
				  ordinances for areas where BFEs have been established.
SECTION AU301
HAZARD IDENTIFICATION
AU301.1
Identification of flood hazard
				areas.
To establish flood hazard areas:
(a) flood hazard map adopted by jurisdiction
				based on areas of special flood hazard as identified by the Federal Emergency
				Management Agency in an engineering report entitled "The Flood Insurance Study
				of
[INSERT NAME OF JURISDICTION]
," dated
[INSERT DATE
				ISSUANCE]
, and amended or revised with the accompanying Flood Insurance
				Rate Map (FIRM) and Flood Boundary and Floodway Map (FBFM) and related
				supporting data along with any revisions thereto.
(b) FIRM maps provided by the Federal
				Emergency Management Agency.
SECTION AU302
SCOPE
AU302.1
Flood loads.
Buildings
				designed and constructed in flood hazard areas defined in Table R301.2(1) of
				the
International Residential Code
shall comply with the
				following:
AU302.1.1
Flood hazard areas
				without base flood elevations.
In flood hazard areas without base flood
				or future-conditions flood elevation data, new construction and substantial
				improvements of existing structures shall have the lowest floor of the lowest
				enclosed area (including basement) elevated no less than three (3) feet above
				the highest adjacent grade to the building foundation.
OPTION A - FLOOD ELEVATION
AU302.1.2
Increase to base
				flood elevation requirements.
Floors required by ASCE 24 to be built
				above base flood elevations as follows:
The higher of:
(a)
				Design flood elevation plus one (1) foot, or
(b) Base flood elevation plus one (1) foot,
				or
(c) Advisory base flood
				elevation, or
(d) Future-conditions
				plus one (1) foot, if known or
(e)
				500-year flood, if known
OPTION B - FLOOD ELEVATION
AU302.1.3
Increase
				to base flood elevation requirements.
Floors required by ASCE 24 to be
				built above base flood elevations as follows:
The higher of:
(a)
				Design flood elevation plus two (2) feet, or
(b) Base flood elevation plus two (2) feet,
				or
(c) Advisory base flood
				elevation, or
(d) Future-conditions
				plus one (1) foot, if known or
(e)
				500-year flood, if known
OPTION C - FLOOD ELEVATION
AU302.1.4
Increase to base
				flood elevation requirements.
Floors required by ASCE 24 to be built
				above base flood elevations as follows:
The higher of:
(a)
				Design flood elevation plus three (3) feet, or
(b) Base flood elevation plus three (3) feet,
				or
(c) Advisory base flood
				elevation, or
(d) Future-conditions
				plus one (1) foot, if known or
(e)
				500-year flood, if known
SECTION AU303
FLOOD DAMAGE-RESISTANT
				  MATERIALS
AU303.1
Flood damage-resistant materials.
Flood damage-resistant materials
				comply with FEMA Technical Bulletin 2, Table 2. Types, Uses, and
				Classifications of Materials.
AU303.2
Location of flood
				damage-resistant materials
.
Building components and materials located below the increase
				  to base flood elevation as determined by the local jurisdiction in accordance
				  with AU302.1 shall be flood damage-resistant as defined by Section
				  AU303.1.
AU303.3
Fasteners and connectors used for flood damage-resistant
				materials.
Fasteners and connectors used for flood damage-resistant
				materials to be made of stainless steel, hot-dipped zinc-coated galvanized
				steel, mechanically deposited-zinc coated, silicon bronze or copper. Copper
				fasteners shall not be permitted for use in conjunction with steel.
CHAPTER AU4
HIGH-WIND RESISTIVE
				  CONSTRUCTION
Forward: This appendix provides four different
				  options for increased wind speed. The jurisdiction may pick only one option
				  that is higher than the mapped wind speed shown in the International
				  Residential Code.
SECTION AU401
GENERAL
AU401.1
Scope.
The provisions of
				this appendix shall govern the structural design of one- and two-family
				dwellings (townhouses) not more than three stories in height with separate
				means of egress and their accessory structures. The building or structure shall
				comply with all aspects of the International Residential Code in addition to
				the requirements of this appendix.
AU401.2
Continuous load path.
A
				continuous load path shall be provided to transmit the applicable forces from
				the roof assembly to the foundation.
AU401.3
Adoption of wind speed. [INSERT
				NAME OF JURISDICTION]
adopts Option
[PICK A, B, C, or D]
MINIMUM WIND SPEED
[INSERT WIND SPEED]
.
AU401.4
Alternative materials, design
				and methods of construction and equipment.
The provisions of this
				appendix are not intended to prevent the installation of any material or to
				prohibit any design or method of construction not specifically prescribed by
				this appendix, provided such material is listed and tested for such application
				intended. An alternative material, design or method of construction shall be
approved
where the
building official
finds
				that the proposed design is satisfactory and complies with the intent of the
				provisions of this appendix, and that the material, method or work offered is,
				for the purpose intended, at least the equivalent of that prescribed in this
				appendix. Compliance with the specific performance-based provisions of the
				International Codes in lieu of specific requirements of this appendix shall
				also be permitted as an alternate.
AU401.4.1
Tests.
Whenever there is insufficient evidence of compliance with
				the provisions of this appendix, or evidence that a material or method does not
				conform to the requirements of this appendix, or in order to substantiate
				claims for alternative materials or methods, the
building
				official
shall have the authority to require tests as evidence of
				compliance to be made at no expense to the
jurisdiction
. Test
				methods shall be as specified in this appendix or by other recognized test
				standards. In the absence of recognized and accepted test methods, the
building official
shall approve the testing procedures. Tests
				shall be performed by an
approved
agency. Reports of such
				tests shall be retained by the
building official
for the
				period required for retention of public records.
SECTION AU402
OPTION A - MINIMUM WIND SPEED 100
				  MPH
AU402.1
Wind
				speed.
Buildings
shall be designed and constructed to
				comply with minimum wind speed of 100 mph Exposure B in accordance with
				AU402.1.1 or in accordance with Prescriptive Method AU402.2. Buildings with
				minimum wind speed of 100 mph Exposure C shall be in accordance with AU402.1.1.
AU402.1.1
Design methods.
The
				design of buildings for wind loads shall be in accordance with one or more of
				the following methods:
1.
AF&PA
				Wood Frame Construction Manual
(WFCM)
,
or
2. AF&PA
Wood Frame Construction
				Manual
Guide to Wood Construction in High Wind Areas for One- and
				  Two-Family Dwellings: 100 MPH Exposure B (WFCM); or
3. ICC
Standard for Residential
				Construction in High-Wind Regions
(ICC 600); or
4. ASCE
Minimum Design Loads for
				Buildings and Other Structures
(ASCE 7); or
5. AISI
Standard for Cold-Formed
				Steel Framing - Prescriptive Method For One- and Two-Family Dwellings
(AISI S230); or
6.
International Building Code
; or
7.
Concrete walls in accordance with
				R404 and R608 of the International Residential Code
; or
8.
Walls of structural insulated
				panels in accordance with R610 of the International Residential
				Code
.
AU402.2
Prescriptive wood frame
				construction method deemed to comply with 100 MPH Exposure B.
Prescriptive construction method for wood frame structures shall be in
				accordance with IRC requirements for 100 mph Exposure B construction as
				modified in this section. A continuous load path shall be provided to transmit
				uplift forces from the roof assembly to the ground as follows:
Click
				  here to view image
Figure
				  U402.2b
(b)
Form No. M310B
© 2011
				APA - The Engineered Wood Association.
AU402.2.1
Roof sheathing
				attachment.
Nail roof sheathing with 8d ring shank (or deformed shank)
				(0.131" x 2-1/2") nails at 4 inches on center along the ends of the sheathing
				and gable end framing 6 inches on center along intermediate framing. See Figure
				AU402.2.1.
AU402.2.2
Gable
				end wall connection
. Tie gable end walls back to the structure. See
				Figure AU402.2.2.
AU402.2.3
Gable end wall sheathing.
Continuously sheath gable end walls with
				wood structural panels or equivalent approved material meeting loading
				requirements. See Figure AU402.2.3.
AU402.2.4
Roof framing to wall
				connection.
Connect roof framing to wall using an approved connector or
				connectors having allowable loads when attached to Southern Pine or Douglas Fir
				lumber of 585 pounds in the upward direction, 485 pounds in the direction
				parallel to the wall and 165 pounds in the direction perpendicular to the wall.
				Attachment to be on exterior face of the exterior walls. See Figure AU402.2.4.
AU402.2.5
Sheathing
				attachment at elevated floor level.
Nail upper story sheathing and lower
				story sheathing into common wood structural panel or engineered rim board. See
				Figure AU402.2.5.
AU402.2.6
Wall sheathing attachment.
Attach wall sheathing with 8d common
				(0.131" x 2-1/2") nails at 4 inches on center at end and edges of wood
				structural panels and 6 inches on center in the intermediate framing. See
				Figure AU402.2.6a. Adjacent edges in wood structural panel wall sheathing that
				do not occur over common framing members shall be attached to flat wise
				blocking as illustrated in Figure AU402.2.6b.
AU402.2.7
Continuous wall
				sheathing.
Continuously sheath all walls with wood structural panels or
				equivalent approved material meeting loading requirements. Continuously sheath
				areas around openings for windows and doors. Minimum wall bracing requirements
				shall be in accordance with IRC Section R602.10 or R602.12 continuous sheathing
				methods as modified in Section AU402.2.
AU402.2.8
Wall sheathing to sill plate
				connection.
Extend sheathing material to lap the sill plate. See Figure
				AU402.2.8.
AU402.2.9
Anchor
				bolt connection.
Space 1/2" anchor bolts with 7 inches of embedment 48
				inches on center with 0.229" x 3" x 3" square plate washers with slotted holes.
				See Figure AU402.2.9. There shall be a minimum of 2 bolts per plate section
				with one bolt located not more than 12" or less than 3.5" from each end of the
				plate section.
AU402.2.10
Top
				plate intersection detail.
Double top plates shall be provided at the
				top of all exterior stud walls. The double plates shall overlap at corners and
				at intersections with other exterior or interior load bearing walls. Double top
				plates shall be lap-spliced with end joints offset in accordance with the
				minimum requirements given in the
WFCM Guides to Wood Construction in
				High Wind Areas for One- and Two-Family Dwellings: 100 MPH Exposure B
.
				See Figure AU402.2.10.
AU402.3
Wall openings.
Uplift
				load path connections at wall openings shall be in accordance with IRC Section
				R602.3.5.
Click
				  here to view image
Figure
				  AU402.2.1b
Roof Sheathing Attachment
				  Detail
Click
				  here to view image
Figure
				  AU402.2.2b
Gable End Wall Connection
				  Detail
Click
				  here to view image
Figure
				  AU402.2.3b
Gable End Wall Sheathing
				  Detail
Click
				  here to view image
Figure
				  AU402.2.4b
Roof Framing to Wall Connection
				  Detail
Click
				  here to view image
Figure
				  AU402.2.5b
Sheathing Attachment at Elevated Floor
				  Level Detail
Click
				  here to view image
Figure
				  AU402.2.6ab
Wall Sheathing Attachment
				  Detail
Click
				  here to view image
Figure AU402.2.6b Panel Splice
				  Detail
Click
				  here to view image
Figure
				  AU402.2.8b
Wall Sheathing to Sill Plate Connection
				  Detail
Click
				  here to view image
Figure
				  AU402.2.9b
Anchor Bolt Connection
				  Detail
Click
				  here to view image
Figure
				  AU402.2.10c
Top Plate Intersection
				  Detail
(b)
Form No.
				M310B
August 2011 APA - The Engineered Wood
				Association
(c)
WFCM
				Guide to Wood Construction in High Wind Areas for One- and Two-Family
Dwellings - American Forest & Paper Association and the American Wood
				Council
SECTION AU403
OPTION B -MINIMUM WIND SPEED 110
				  MPH
AU403.1
Wind
				speed.
Buildings
shall be designed and constructed to
				comply with minimum wind speed of 110 mph Exposure B.
AU403.1.1
Design methods.
The
				design of buildings for wind loads shall be in accordance with one or more of
				the following methods:
1. AF&PA
Wood Frame Construction Manual
(WFCM); or
2. ICC
Standard for Residential
				Construction in High-Wind Regions
(ICC 600); or
3. ASCE
Minimum Design Loads for
				Buildings and Other Structures
(ASCE 7); or
4. AISI
Standard for Cold-Formed
				Steel Framing - Prescriptive Method For One- and Two-Family Dwellings
(AISI S230); or
5.
International Building Code
; or
6.
Concrete walls in accordance with
				R404 and R608 of the International Residential Code
; or
7.
Walls of structural insulated
				panels in accordance with R610 of the International Residential Code
.
SECTION AU404
OPTION C -MINIMUM WIND SPEED 120
				  MPH
AU404.1
Wind speed.
Buildings
shall be designed and constructed to comply with
				minimum wind speed of 120 mph Exposure B.
AU404.1.1
Design methods.
The
				design of buildings for wind loads shall be in accordance with one or more of
				the following methods:
1. AF&PA
Wood Frame Construction Manual
(WFCM); or
2. ICC
Standard for Residential
				Construction in High-Wind Regions
(ICC 600); or
3. ASCE
Minimum Design Loads for
				Buildings and Other Structures
(ASCE 7); or
4. AISI
Standard for Cold-Formed
				Steel Framing - Prescriptive Method For One- and Two-Family Dwellings
(AISI S230); or
5.
International Building Code; or
6.
Concrete walls in accordance with
				R404 and R608 of the International Residential Code; or
7.
Walls of structural insulated
				panels in accordance with R610 of the International Residential Code
.
SECTION AU405
OPTION D - MINIMUM WIND SPEED 130
				  MPH
AU405.1
Wind speed.
Buildings
shall be designed and constructed to comply with
				minimum wind speed of 130 mph Exposure B.
AU405.1.1
Design methods.
The
				design of buildings for wind loads shall be in accordance with one or more of
				the following methods:
1. AF&PA
Wood Frame Construction Manual
(WFCM); or
2. ICC
Standard for Residential
				Construction in High-Wind Regions
(ICC 600); or
3. ASCE
Minimum Design Loads for
				Buildings and Other Structures
(ASCE 7); or
4. AISI
Standard for Cold-Formed
				Steel Framing - Prescriptive Method For One- and Two-Family Dwellings
(AISI S230); or
5.
International Building Code; or
.
6.
Concrete walls in accordance with
				R404 and R608 of the International Residential Code
.
SECTION AU406
FASTENERS AND CONNECTORS FOR
				  CLADDING
AU406.1
Fasteners and connectors for cladding.
Fasteners and connectors to
				be made of stainless steel, hot-dipped zinc-coated galvanized steel,
				mechanically deposited-zinc coated, silicon bronze or copper. Copper fasteners
				shall not be permitted for use in conjunction with steel.
SECTION AU407
FENESTRATION
AU407.1
Design pressure.
Exterior windows and doors shall be designed to resist the design wind loads
				specified in
International Residential Code
Table R301.2(2)
				adjusted for height and exposure per
International Residential
				Code
Table R301.2(3) based on the minimum wind speed specified in this
				appendix by the local jurisdiction.
AU407.2
Anchorage methods.
Window and door assembly anchoring systems shall be in accordance with the
				manufacturer's published recommendations to achieve the design pressure
				specified per Section AU407.1. Substitute anchoring systems shall provide equal
				or greater anchoring performance as demonstrated by accepted engineering
				practice. Anchorage shall not exceed the spacing for the tested rated
				performance.
SECTION AU408
ROOFING
AU408.1
Secondary water barrier.
Underlayment shall be two layers applied in the following manner:
(a)
Self-adhering tape as first
				layer.
Install minimum 4 inch wide self-adhering modified bitumen tape
				over sheathing joints. Seal deck penetrations with self-adhering modified
				bitumen tape.
ASTM D 226 Type I, ASTM D 4869 Type I or ASTM D 6757
as second layer. Apply a 19-inch strip of underlayment felt parallel to and
				starting at eaves, secure with low-profile, capped-head nails or thin metal
				disks attached with roofing nails. Fasten at approximately 6 inches on center
				along the laps and at approximately 12 inches on center along a row in the
				field of the sheet between the side laps. All laps shall be a minimum of 4
				inches. Starting at the eave, apply 36-inch-wide sheets of underlayment,
				overlapping successive sheets 19 inches, fasten as before. Distortions in the
				underlayment shall not interfere with the ability of the shingles to seal.
(b)
Two layers of ASTM D 226
				Type I, ASTM D 4869 Type I or ASTM D 6757.
For each layer, apply a
				19-inch strip of underlayment felt parallel to and starting at eaves, secure
				with low-profile, cappedhead nails or thin metal disks attached with roofing
				nails. Fasten at approximately 6 inches on center along the laps and at
				approximately 12 inches on center along a row in the field of the sheet between
				the side laps. All laps shall be a minimum of 4 inches. Starting at the eave,
				apply 36-inch-wide sheets of underlayment, overlapping successive sheets 19
				inches, fasten as before. Distortions in the underlayment shall not interfere
				with the ability of the shingles to seal.
Exception:
As an alternative, adhered
				  underlayment complying with ASTM D 1970 shall be permitted.
AU408.2
Fasteners.
AU408.2.1
Underlayment
				fasteners
. Underlayment shall be attached using metal or plastic cap
				corrosion-resistant nails with a head diameter of not less than 1 inch with a
				thickness of at least 32-gauge sheet metal. The cap-nail shank shall be a
				minimum of 12 gauge with a sufficient length to penetrate through the roof
				sheathing or a minimum of 3/4 inch into the roof sheathing.
AU408.2.2
Asphalt shingles
				fasteners.
Where asphalt shingles shall be applied with
				corrosion-resistant nails with shanks made of minimum 12 gauge wire and a
				minimum head diameter of 3/8 inch. Nails shall be long enough to penetrate 3/4
				inch into the roof deck. Where the deck is less than 3/4 inch thick, the nails
				shall be long enough to penetrate completely through plywood decking and extend
				at least 1/8 inch through the roof deck.
AU408.3
Attachment
. Where
				asphalt shingles shall have a minimum number of fasteners required by the
				manufacturer, but not less than six fasteners per strip shingle or three
				fasteners per individual shingle. Drive nail head flush with the shingle
				surface per figure AU408.2.
Click
				  here to view image
Figure
				  AU408.2d
(d) FEMA
Home Builder's Guide to
				Coastal Construction Technical Fact Sheet No. 7.3 Asphalt Shingle Roofing for
				High Wind Regions
.
CHAPTER AU5
RESIDENTIAL STORM SHELTERS AND SAFE
				  ROOMS
SECTION AU501
GENERAL
AU501.1
General.
This section
				applies to the construction of residential storm shelters and safe rooms when
				constructed as separate detached buildings or as internal areas within
				buildings for the purpose of providing safe refuge for storms that produce high
				winds, such as tornados and hurricanes. Residential storm shelters or safe
				rooms shall be offered as an optional package.
SECTION AU502
RESIDENTIAL STORM SHELTERS AND SAFE
				  ROOMS
AU502.1
Residential
				storm shelters.
Residential storm shelters when constructed shall be in
				compliance with the following:
1.
ICC/NSSA-500
per IRC Section R323.
AU502.2
Residential safe rooms.
Residential safe rooms when constructed shall be in compliance with the
				following:
1.
FEMA 361 Design and
				Construction Guidance for Community Safe Rooms;
or
2.
FEMA 320 Taking Shelter from the
				Storm: Building a Safe Room For Your Home and Small Business
CHAPTER AU6
RESOURCES
SECTION AU601
CONTACTS
Georgia Department of Community Affairs (DCA)
				  Construction Codes
Georgia State Amendments to the State Minimum
Standard Codes
https://dca.ga.gov/local-government-assistance/construction-codes-industrialized-buildings/construction-codes
Phone: 404-679-3118
Georgia Department of Natural Resources
				  (DNR)
Floodplain Management
4220 International Parkway, Ste. 101
Atlanta, GA 30354-3902
www.georgiadfirm.com
Phone: 404-675-1757
Federal Emergency Management Agency
				  (FEMA)
www.fema.gov
;
				  www.floodsmart.gov
www.fema.gov/rebuild/buildingscience/
FEMA Publications and Technical Bulletins:
www.fema.gov/library/index.jsp
www.fema.gov/plan/prevent/floodplain/techbul.shtm
Georgia Emergency Management Agency
				  (GEMA)
Georgia Office of Homeland Security
P.O. Box 18055
Atlanta, GA 30316-0055
www.gema.ga.gov
www.ready.ga.gov
Phone: 404-635-7000
Georgia Association of Regional Commissions
				  (GARC)
www.garc.ga.gov
http://garc.ga.gov/main.php?Regional-Commissions-2
(for assistance in identifying Flood Hazard Areas)
International Code Council (ICC)
www.iccsafe.org
National Weather Service
www.srh.weather.gov
State Fire Marshal's Office
2 Martin Luther King Jr. Drive
Suite 920 / West Tower
Atlanta, Georgia 30334
www.oci.ga.gov
Phone: 404-656-7087
SECTION AU602
EMERGENCY INSPECTION KIT
				  e
[] Staff's disaster response management
							 plan
[] Work gloves
[] Envelope for expense receipts
[] Team contact list
[] Steel toe and waterproof boots
[] Compass, GPS unit
[] Area maps
[] Whistle
[] Backpack, waistpack
[] Official
							 identification
[] First aid kit
[] Flashlight and extra batteries
[] Personal
							 identification
[] Latex gloves
[] Battery-operated radio
[] Inspection forms and
							 placards
[] Safety glasses
[] Duct tape
[] Communication
							 equipment
[] Sunglasses
[] Clipboard
[] Pocket knife
[] Hard hat
[] Matches
[] Orange safety vest
[] Antibacterial hand wipes or alcohol-based
							 hand sanitizer
[] Dust mask
[] Insect repellant (w/Deet or
							 Picaridin)
[] Sunscreen (SPF 15 or greater)
[] Camera
[] Black markers
[] Pens & pencils
Remember to
							 grab:
[] Staples & stapler
[] Personal
							 identification
[] Cell phone and charger
[] Staple gun
[] Rain gear, extra
							 clothing
[] Cash for personal
							 expenses
[] Calculator
[] Water bottle
[] Toiletries
[] Tire repair kit
[] Prescription medication
(e)
Disaster Mitigation: A Guide for Building Departments
by the
				International Code Council, Inc., copyright 2009
SECTION AU603
SAFETY TIPS
				  a
1.
Always travel in teams of at least two people.
2.
Always wear a hard hat, gloves,
				goggles, safety vest, and dust masks.
3.
Always wear safety shoes capable of
				protecting the toes and bottom of the foot.
4.
Survey the building exterior
				completely before entering.
5.
Enter building only if authorized
				and if deemed safe to do so.
6.
Be alert for falling
				objects.
7.
In case of
				fire, injuries or victims, evacuate the area and alert the fire department
				immediately.
8.
Avoid
				downed power lines and buildings under them or water surrounding
				them.
9.
In case of
				gas leaks, shut off the gas (if possible) and report the leak.
10.
In a flood situation, have a
				"walking stick."
(a)
When
				Disaster Strikes
by the International Code Council, Inc., Seventh
				Printing: November 2011, copyright 2007
SECTION AU604
MAJOR DISASTER PROCESS
(from link
				  http://www.fema.gov/hazard/dproc.shtm)
A Major Disaster Declaration usually follows these
				  steps:
Incident occurs and local government
					 responds,
supplemented by neighboring communities and volunteer
					 agencies. If overwhelmed, turn to the state for assistance;
Generally the local government will issue a local state of
				  emergency
The State responds
with state resources,
					 such as the National Guard and state agencies;
Prior to committing state resources, the Governor will
				  declare a state of emergency in the counties impacted by the event for which
				  assistance is needed.
Damage assessment
by local, state,
					 federal, and volunteer organizations determine losses and recovery
					 needs;
Generally the locals will submit a preliminary damage
				  assessment to the State and the State will review and determine if state and/or
				  federal assistance is needed. If federal assistance is needed, the state will
				  request FEMA perform a preliminary joint damage assessment. If the Governor
				  determines that the incident is of such severity and magnitude that effective
				  response is beyond the capabilities of the State and the affected local
				  governments then supplementary Federal assistance is requested (next
				  step).
A Major Disaster Declaration
is requested
					 by the Governor, based on the damage assessment, and agreement to commit state
					 funds and resources to the long-term recovery;
FEMA evaluates
the request and recommends
					 action to the White House based on the disaster, the local community and the
					 state's ability to recover;
The President approves
the request or FEMA
					 informs the Governor it has been denied. This decision process could take a few
					 hours or several weeks depending on the nature of the disaster.
SECTION AU605
SAMPLE EVALUATION FORMS AND INSPECTION
				  PLACARDS e
(following pages)
Figure AU605.1
				  e
Click
				  here to view image
Figure AU605.2
				  e
Click
				  here to view image
Click
				  here to view image
Figure AU605.3
				  e
Click
				  here to view image
Figure AU605.4
				  e
Click
				  here to view image
Figure AU605.5
				  e
Click
				  here to view image
CHAPTER AU7
REFERENCES
REFERENCED STANDARDS
ASCE Standards ASCE/SEI 24-05 Flood Resistant Design and
				  Construction
FEMA P-320, Third Edition / August 2008 Taking Shelter From
				  the Storm: Building a Safe Room For Your Home or Small Business, Includes
				  Construction Plans and Cost Estimates
FEMA 361, Second Edition / August 2008 Design and
				  Construction Guidance for Community Safe Rooms
FEMA Technical Bulletin 2, Table 2. Types, Uses, and
				  Classifications of Materials
REFERENCED RESOURCES
(a)
When Disaster Strikes
by
				the International Code Council, Inc., Seventh Printing: November 2011,
				copyright 2007
(b)
Form No.
				M310B
August 2011 APA - The Engineered Wood Association;
www.apawood.org
(c)
WFCM Guide to Wood Construction
				in High Wind Areas for One- and Two-Family
Dwellings - American Forest
				& Paper Association and the American Wood Council;
www.awc.org
(d) FEMA
Home Builder's Guide to
				Coastal Construction Technical Fact Sheet No. 7.3 Asphalt Shingle Roofing for
				High Wind Regions
.
(e)
Disaster Mitigation: A Guide for Building Departments
by the
				International Code Council, Inc., copyright 2009
Index of Figures:
Figure AU103.3 Post Disaster Building Safety Evaluation
				  Chart a ................................................. 10
Figure AU402.2 Prescriptive wood frame construction
				  method deemed to comply with 100 mph
				  ................................................. 14
Figure AU402.2.1 Roof Sheathing Attachment Detail
				  ................................................. 15
Figure AU402.2.2 Gable End Wall Connection Detail
				  ................................................. 15
Figure AU402.2.3 Gable End Wall Sheathing Detail
				  ................................................. 16
Figure AU402.2.4 Roof Framing to Wall Connection Detail
				  ................................................. 16
Figure AU402.2.5 Sheathing Attachment at Elevated Floor
				  Level Detail ................................................. 17
Figure AU402.2.6a Wall Sheathing Attachment Detail
				  ................................................. 17
Figure AU402.2.6b Panel Splice Detail
				  ................................................. 17
Figure AU402.2.8 Wall Sheathing to Sill Plate
				  Connection Detail .................................................
				  18
Figure AU402.2.9 Anchor Bolt Connection Detail
				  ................................................. 18
Figure AU402.2.10 Top Plate Intersection Detail
				  ................................................. 18
Figure AU408.2 Roof Shingle Nailing Detail
				  ................................................. 20
Figure AU605.1 ATC-45 Rapid Evaluation Form
				  ................................................. 24
Figure AU605.2 ATC-45 Detail Evaluation Form
				  ................................................. 25
Figure AU605.3 Inspected Placard
				  ................................................. 27
Figure AU605.4 Restricted Placard
				  ................................................. 28
Figure AU605.5 Unsafe Placard
				  ................................................. 29
End of Amendments.