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-.34 - International Energy Conservation Code (IECC), 2015 Edition with 2020, 2022, 2022 Additional and 2023 Georgia State Amendments

Current through Rules and Regulations filed through June 27, 2024
Click
				  here to view
GEORGIA STATE MINIMUM STANDARD ENERGY
				  CODE
(INTERNATIONAL ENERGY CONSERVATION CODE
				  WITH GEORGIA STATE SUPPLEMENTS AND AMENDMENTS)
The INTERNATIONAL ENERGY CONSERVATION CODE, 2015
				  Edition, published by the International Code Council, when used in conjunction
				  with these Georgia State Supplements, Amendments and any other Georgia State
				  Amendments, shall constitute the official
Georgia State Minimum
				  Standard Energy Code.
GEORGIA STATE SUPPLEMENTS AND
				  AMENDMENTS
SCOPE:
Each chapter of these Georgia State Supplements and
				  Amendments corresponds with a chapter of the
International Energy
				  Conservation Code
(
IECC).
Commercial Provisions
Chapter 1: Scope and Administration
									 Chapter 2: Definitions
									 Chapter 3: General Requirements
									 Chapter 4: Commercial Energy Efficiency
									Compliance Pathways for Commercial and High-Rise
					 Residential Construction:
									 Any of those delineated in this chapter; or
COMcheck
1
									 Chapter 5: Existing Buildings
									 Chapter 6: Referenced Standards
Residential Provisions
Chapter 1: Scope and Administration
									Chapter 2: Definitions
									Chapter 3: General Requirements
									Chapter 4: Residential Energy Efficiency
									Compliance Pathways for Low-Rise Residential
					 Construction:
									Any of those delineated in this chapter; or
REScheck
1
									
									Chapter 5: Existing Buildings
									Chapter 6: Referenced Standards
									Appendices RA, RB, RC and RD
									Throughout the appendices, there is information that
					 may be helpful in meeting and understanding the
Georgia State Minimum
					 Standard Energy Code.
In cases of conflict, refer to the
IECC
for clarification.
1.
REScheck
and
COMcheck
are computer programs
				developed by Pacific Northwest National Laboratories for the U.S. Department of
				Energy (D.O.E.) to assist in demonstration of compliance with the
IECC
. They may be obtained free of charge from the D.O.E.
				online at
www.energycodes.gov
. When
				following the REScheck compliance pathway, select the 2015 IECC as the code
				version. When following the COMcheck compliance pathway, select either IECC
				2015 or ASHRAE/IESNA Standard 90.1-2013.
The 'Mandatory' requirements of the
IECC
apply to all compliance methods.
Where these Georgia State Supplements and Amendments conflict
				  with either the
IECC
or
ANSI/ASHRAE/IES Standard
				  90.1
, these Georgia State Supplements and Amendments shall take
				  precedence.
Air infiltration accounts for substantial heat loss,
				  heat gain and moisture migration in a building. Proper sealing around all
				  doors, windows and other envelope penetrations through the walls, ceiling and
				  foundation is as important to code compliance as are proper insulation R-values
				  and component U-factors.
It is not the intention of this code to abridge safety or
				  health. Where the
IECC
and these Georgia State Supplements and
				  Amendments conflict with other mandatory
State Minimum Standard
				  Codes
, the
IECC
and these Georgia State Supplements
				  and Amendments shall be enforced as written, provided that safety, health or
				  environmental requirements of other mandatory
State Minimum Standard
				  Codes are not abridged.
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.
This space intentionally left blank
RESIDENTIAL PROVISIONS
IMPORTANT NOTE:
Where required by Georgia State Minimum Standard Energy Code,
				  R6 Flexible Duct combined with an approved continuous Radiant Barrier as part
				  of the roof assembly may be substituted for the required R8 Flexible
				  Duct.
The use of this substitution will be valid until June 30,
				  2023 at the discretion of the authority having jurisdiction. (Effective
				  September 1, 2022).
CHAPTER 4
[RE] RESIDENTIAL ENERGY
				  EFFICIENCY
SECTION R402 BUILDING
THERMAL ENVELOPE
* Revise Table 402.1.2 'Insulation and Fenestration
				  Requirements by Componenta' header 'Floor
R
-Value' and add new
				  footnote 'j' to read as follows:
TABLE R402.1.2
INSULATION AND FENESTRATION
							 REQUIREMENTS BY COMPONENT3
Climate Zone
Fenestration
U
-Factorb
Skylightb
U
-Factor
Glazed Fenestration
							 SHGCb,e
Ceiling
R
-Value
Wood Frame Wall
R
-Value
Attic Kneewall
R
-Value1
Mass Wall
R
-Value
Floor
R
-Valuej
Wallc
R
-Value
Slabd
R
-Value & Depth
Crawlc
							 Space Wall
R
-Value
2
0. 35
0.65
0.27
38
13
18
4/6
13
0
0
0
3
0.35
0.55
0.27
38
13
18
8/13
19
5/13f
0
5/13
4 except marine
0.35
0.55
0.27
38
13
18
8/13
19
10/13
0
10/13
j: Cantilevered floors over outside air shall be R-30 and the
				  band area above the supporting wall shall be blocked; penetrations of blocking
				  shall be air sealed.
(Effective January 1, 2023)
* Revise Table 402.1.4 'Equivalent
U
-Factorsa' header 'Floor
U
-Value' and add new footnote 'd' to read as follows:
TABLE R402.1.4
EQUIVALENT
U
-FACTORSa
Climate Zone
Fenestration
U
-Factor
Skylight
U
-Factor
Ceiling
U
-Factor
Frame Wall
U
-Factor
Mass Wall
U
-Factorb
Floor
U
-Factord
Basement Wall
U
-Factor
Crawl Space Wall
U
-Factor
2
0.35
0.65
0.030
0.084
0.165
0.064
0.360
0.477
3
0.35
0.55
0.030
0.084
0.098
0.047
0.091c
0.136
4 except marine
0.35
0.55
0.030
0.084
0.098
0.047
0.059
0.065
d: Cantilevered floors over outside air shall be U-0.035 and
				  the band area above the supporting wall shall be blocked; penetrations of
				  blocking shall be air sealed.
(Effective January 1, 2023)
* Revise Underfloor Insulation in Appendix RA Georgia
				  Insulation Installation -
Passing Grade Details
(p.45) to read
				  as follows:
Underfloor insulation
that makes up portions of
				  the building thermal envelope shall be installed to Passing Grade
				  quality.
Two criteria affect installed insulation grading:
voids/ gaps
(in which no insulation is present in a portion of the
				  overall insulated surface) and
compression/incomplete fill
(in
				  which the insulation does not fully fill out or extend to the desired depth).
				  Cantilevered floors over outside air shall be R-30 and the band area above the
				  supporting wall shall be blocked; penetrations of blocking shall be air
				  sealed.
(Effective January 1, 2023)
Click
				  here to view
GEORGIA STATE MINIMUM STANDARD ENERGY
				  CODE
(INTERNATIONAL ENERGY CONSERVATION CODE
				  WITH GEORGIA STATE SUPPLEMENTS AND AMENDMENTS)
The INTERNATIONAL ENERGY CONSERVATION CODE, 2015
				  Edition, published by the International Code Council, when used in conjunction
				  with these Georgia State Supplements, Amendments and any other Georgia State
				  Amendments, shall constitute the official
Georgia State Minimum
				  Standard Energy Code.
GEORGIA STATE SUPPLEMENTS AND
				  AMENDMENTS
SCOPE:
Each chapter of these Georgia State Supplements and
				  Amendments corresponds with a chapter of the
International Energy
				  Conservation Code
(
IECC).
Commercial Provisions
Chapter 1: Scope and Administration
										Chapter 2: Definitions
										Chapter 3: General Requirements
										Chapter 4: Commercial Energy Efficiency
										Compliance Pathways for Commercial and High-Rise
					 Residential Construction:
										Any of those delineated in this chapter; or
COMcheck
1
										
										Chapter 5: Existing Buildings
										Chapter 6: Referenced Standards
Residential Provisions
Chapter 1: Scope and Administration
										Chapter 2: Definitions
										Chapter 3: General Requirements
										Chapter 4: Residential Energy Efficiency
										Compliance Pathways for Low-Rise Residential
					 Construction: 
										Any of those delineated in this chapter; or
REScheck
1
										
										Chapter 5: Existing Buildings
										Chapter 6: Referenced Standards
										Appendices RA, RB, RC and RD
										Throughout the appendices, there is information that
					 may be helpful in meeting and understanding the
Georgia State Minimum
					 Standard Energy Code.
In cases of conflict, refer to the
IECC
for clarification.
1.
REScheck
and
COMcheck
are computer programs
				developed by Pacific Northwest National Laboratories for the U.S. Department of
				Energy (D.O.E.) to assist in demonstration of compliance with the
IECC
. They may be obtained free of charge from the D.O.E.
				online at
www.energycodes.gov
. When
				following the REScheck compliance pathway, select the 2015 IECC as the code
				version. When following the COMcheck compliance pathway, select either IECC
				2015 or ASHRAE/IESNA Standard 90.1-2013.
The 'Mandatory' requirements of the
IECC
apply to all compliance methods.
Where these Georgia State Supplements and Amendments conflict
				  with either the
IECC
or
ANSI/ASHRAE/IES Standard
				  90.1
, these Georgia State Supplements and Amendments shall take
				  precedence.
Air infiltration accounts for substantial heat loss,
				  heat gain and moisture migration in a building. Proper sealing around all
				  doors, windows and other envelope penetrations through the walls, ceiling and
				  foundation is as important to code compliance as are proper insulation R-values
				  and component U-factors.
It is not the intention of this code to abridge safety or
				  health. Where the
IECC
and these Georgia State Supplements and
				  Amendments conflict with other mandatory
State Minimum Standard
				  Codes
, the
IECC
and these Georgia State Supplements
				  and Amendments shall be enforced as written, provided that safety, health or
				  environmental requirements of other mandatory
State Minimum Standard
				  Codes
are not abridged.
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.
This space intentionally left blank
RESIDENTIAL PROVISIONS
* Add a new section "Important Note" beneath the "Residential
				  Provisions" heading in the Georgia State Supplements and Amendments to the
				  International Energy Conservation Code (2015 Edition) as follows:
IMPORTANT NOTE:
Where required by Georgia State Minimum Standard Energy Code,
				  R6 Flexible Duct combined with an approved continuous Radiant Barrier as part
				  of the roof assembly may be substituted for the required R8 Flexible
				  Duct.
The use of this substitution will be valid until June 30,
				  2023 at the discretion of the authority having jurisdiction. (Effective
				  September 1, 2022).
Click
				  here to view
GEORGIA STATE MINIMUM STANDARD ENERGY
				  CODE
(INTERNATIONAL ENERGY CONSERVATION CODE
				  WITH GEORGIA STATE SUPPLEMENTS AND AMENDMENTS)
The INTERNATIONAL ENERGY CONSERVATION CODE, 2015
				  Edition, published by the International Code Council, when used in conjunction
				  with these Georgia State Supplements, Amendments and any other Georgia State
				  Amendments, shall constitute the official
Georgia State Minimum
				  Standard Energy Code.
GEORGIA STATE SUPPLEMENTS AND
				  AMENDMENTS
SCOPE:
Each chapter of these Georgia State Supplements and
				  Amendments corresponds with a chapter of the
International Energy
				  Conservation Code
(
IECC).
Commercial Provisions
Chapter 1: Scope and Administration
										Chapter 2: Definitions
										Chapter 3: General Requirements
										Chapter 4: Commercial Energy Efficiency
										Compliance Pathways for Commercial and High-Rise
					 Residential Construction:
										Any of those delineated in this chapter; or
COMcheck
1
										Chapter 5: Existing Buildings
										Chapter 6: Referenced Standards
Residential Provisions
Chapter 1: Scope and Administration
										Chapter 2: Definitions
										Chapter 3: General Requirements
										Chapter 4: Residential Energy Efficiency
										Compliance Pathways for Low-Rise Residential
					 Construction:
										Any of those delineated in this chapter; or
REScheck
1
										Chapter 5: Existing Buildings
										Chapter 6: Referenced Standards
										Appendices RA, RB, RC and RD
										Throughout the appendices, there is information that
					 may be helpful in meeting and understanding the
Georgia State Minimum
					 Standard Energy Code.
In cases of conflict, refer to the
IECC
for clarification.
1.
REScheck
and
COMcheck
are computer programs
				developed by Pacific Northwest National Laboratories for the U.S. Department of
				Energy (D.O.E.) to assist in demonstration of compliance with the
IECC
. They may be obtained free of charge from the D.O.E.
				online at
www.energycodes.gov
. When
				following the REScheck compliance pathway, select the 2015 IECC as the code
				version. When following the COMcheck compliance pathway, select either IECC
				2015 or ASHRAE/IESNA Standard 90.1-2013.
The 'Mandatory' requirements of the
IECC
apply to all compliance methods.
Where these Georgia State Supplements and Amendments conflict
				  with either the
IECC
or
ANSI/ASHRAE/IES Standard
				  90.1
, these Georgia State Supplements and Amendments shall take
				  precedence.
Air infiltration accounts for substantial heat loss,
				  heat gain and moisture migration in a building. Proper sealing around all
				  doors, windows and other envelope penetrations through the walls, ceiling and
				  foundation is as important to code compliance as are proper insulation R-values
				  and component U-factors.
It is not the intention of this code to abridge safety or
				  health. Where the
IECC
and these Georgia State Supplements and
				  Amendments conflict with other mandatory
State Minimum Standard
				  Codes
, the
IECC
and these Georgia State Supplements
				  and Amendments shall be enforced as written, provided that safety, health or
				  environmental requirements of other mandatory
State Minimum Standard
				  Codes
are not abridged.
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.
This space intentionally left blank
RESIDENTIAL PROVISIONS
CHAPTER 4 [RE] RESIDENTIAL ENERGY
				  EFFICIENCY
SECTION R402 BUILDING THERMAL
				  ENVELOPE
*Add new Section R402.1.2.1 'Indirectly conditioned attics'
				  to read as follows:
R402.1.2.1
(N1102.1.2.1) Indirectly conditioned attics.
Where table N1102.1.2
				(R402.1.2) requires R-38 or Table N1102.1.4 (R402.1.4) requires a U-factor of
				0.030, an air impermeable insulation installed to the underside or directly
				above the roof deck with a U-factor of 0.05 or R-value of R-20 shall be deemed
				equivalent to the provisions in N1102.2.1 (R402.2.1), with the following
				requirements:
1. The house shall attain a
				blower door test result 3 ACH50
2.
				The house shall require a whole house mechanical ventilation system that does
				not solely rely on a negative pressure strategy (must be positive, balanced or
				hybrid)
3. Where insulation is
				installed below the roof deck and the exposed portion of roof rafters are not
				already covered by the R-20 depth of the air-impermeable insulation, the
				exposed portion of the roof rafters shall be wrapped (covered) by minimum R-3
				unless directly covered by drywall / finished ceiling. Roof rafters are not
				required to be covered by minimum R-3 if a continuous insulation is installed
				above the roof deck.
4. Indoor
				heating, cooling and ventilation equipment (including ductwork) shall be inside
				the building thermal envelope.
(Effective January 1, 2022)
*Add new Section R402.2.9.1 'Rim joist insulation' to read as
				  follows: