Ohio Administrative Code › Title 4101:8 - Board of Building Standards: Residential Code of Ohio › Chapter 4101:8-11 - Energy Efficiency › Section 4101:8-11-01 - Energy efficiency

Current through all regulations passed and filed through July 1, 2024
[Comment: When a reference is made
	 within this rule to a federal statutory provision, an industry consensus
	 standard, or any other technical publication, the specific date and title of
	 the publication as well as the name and address of the promulgating agency are
	 listed in rule
	 4101:8-44-01
	 of the Administrative Code. The application of the referenced standards shall
	 be limited and as prescribed in section 102.5 of rule
	 4101:8-1-01 of the
	 Administrative Code.]
SECTION
  1101
GENERAL
1101.1
Scope
and intent.
This chapter
  regulates the energy efficiency for the design and construction of buildings
  regulated by this code.
This chapter shall regulate the design and
  construction of buildings for the effective use and conservation of energy over
  the useful life of each building. This chapter is intended to provide
  flexibility to permit the use of innovative approaches and techniques to
  achieve this objective. This chapter is not intended to abridge safety, health
  or environmental requirements contained in other applicable codes or
  ordinances.
1101.2
Compliance.
Sections 1101.1 through
  1101.12 shall apply to all compliance paths.
1101.2.1.
Compliance paths.
Compliance shall be demonstrated by meeting the requirements
  of one of the following options:
1.
Sections
  1101.14 through 1104 of this chapter, or
2.
Section
  1105 (the Simulated Performance approach) and the provisions of Sections
  1101.14 through 1104 indicated as "Mandatory," or
3.
Section
  1106 (the Energy Rating Index (ERI) approach) and the provisions of Sections
  1101.14 through 1104 indicated as "Mandatory," and Section 1103.5.3,
  or
4.
Section 1112 ("The Ohio Home Builder's Association (OHBA)
  Alternative Energy Code Option"), or
5.
The
  "International Energy Conservation Code."
1101.3
Compliance materials.
The building official shall be permitted to approve specific
  computer software, worksheets, compliance manuals and other similar materials
  that meet the intent of this chapter.
1101.4
Above
  code programs.
Deleted.
1101.5
Information on construction documents.
Construction documents shall be drawn to scale on suitable
  material. Electronic media documents are permitted to be submitted when
  approved by the building official. Construction documents shall be of
  sufficient clarity to indicate the location, nature and extent of the work
  proposed, and show in sufficient detail pertinent data and features of the
  building, systems and equipment as herein governed. Details shall include the
  following as applicable:
1.
										Insulation materials and their
  R-values.
2.
										Fenestration U-factors and solar heat gain coefficients
  (SHGC).
3.
										Area-weighted U-factor and solar heat gain coefficient
  (SHGC) calculations.
4.
										Mechanical system design criteria.
5.
										Mechanical and
  service water heating systems and equipment types, sizes and
  efficiencies.
6.
										Equipment and system controls.
7.
										Duct sealing, duct
  and pipe insulation and location.
8.
										Air sealing
  details.
1101.5.1
Building thermal envelope depiction.
The building thermal envelope shall be represented on the
  construction documents.
1101.6
Defined
  terms.
The following terms
are
  defined in Chapter 2:
ABOVE-GRADE WALL.
ACCESSIBLE.
ADDITION.
AIR BARRIER.
ALTERATION.
AUTOMATIC.
BASEMENT WALL.
BUILDING.
BUILDING SITE.
BUILDING THERMAL
	 ENVELOPE.
CIRCULATING HOT WATER
	 SYSTEM.
CLIMATE ZONE.
CONDITIONED FLOOR
	 AREA.
CONDITIONED SPACE.
CONTINUOUS AIR
	 BARRIER.
CONTINUOUS INSULATION
	 (ci).
CRAWL SPACE WALL.
CURTAIN WALL.
DEMAND RECIRCULATION WATER
	 SYSTEM.
DUCT.
DUCT SYSTEM.
DWELLING UNIT.
ENERGY ANALYSIS.
ENERGY COST.
ENERGY SIMULATION
	 TOOL.
ERI REFERENCE DESIGN.
EXTERIOR WALL.
FENESTRATION.
Site-built fenestration
	 product.
Skylights.
Vertical
	 fenestration.
HEATED SLAB.
HIGH-EFFICACY LAMPS.
HISTORIC BUILDING.
INFILTRATION.
INSULATED SIDING.
INSULATING SHEATHING.
LABELED.
LISTED.
LOW-VOLTAGE LIGHTING.
MANUAL.
OPAQUE DOOR.
PROPOSED DESIGN.
RATED DESIGN.
READILY ACCESSIBLE.
REPAIR.
REROOFING.
RESIDENTIAL BUILDING.
ROOF ASSEMBLY.
ROOF RECOVER.
ROOF REPAIR.
ROOF REPLACEMENT.
R-VALUE (THERMAL
	 RESISTANCE).
SERVICE WATER
	 HEATING.
SOLAR HEAT GAIN COEFFICIENT
	 (SHGC).
STANDARD REFERENCE
	 DESIGN.
SUNROOM.
THERMAL ISOLATION.
THERMOSTAT.
U-FACTOR (THERMAL
	 TRANSMITTANCE).
VENTILATION.
VENTILATION AIR.
VISIBLE TRANSMITTANCE
	 [VT].
WHOLE HOUSE MECHANICAL VENTILATION
	 SYSTEM.
ZONE.
1101.7
Climate
  zones.
Climate zones from Figure 1101.7 or
  Table 1101.7 shall be used for determining the applicable requirements in
  Sections 1101 through 1111.
Click to
	 view image
FIGURE 1101.7
CLIMATE ZONES
TABLE 1101.7
CLIMATE ZONES, MOISTURE REGIMES, AND
	 WARM-HUMID
DESIGNATIONS BY STATE, COUNTY AND
	 TERRITORY
OHIO
4A Adams
4A Hamilton
5A Noble
5A Allen
5A Hancock
5A Ottawa
5A Ashland
5A Hardin
5A Paulding
5A Ashtabula
5A Harrison
5A Perry
5A Athens
5A Henry
5A Pickaway
5A Auglaize
5A Highland
4A Pike
5A Belmont
5A Hocking
5A Portage
4A Brown
5A Holmes
5A Preble
5A Butler
5A Huron
5A Putnam
5A Carroll
5A Jackson
5A Richland
5A Champaign
5A Jefferson
5A Ross
5A Clark
5A Knox
5A Sandusky
4A Clermont
5A Lake
4A Scioto
5A Clinton
4A Lawrence
5A Seneca
5A Columbiana
5A Licking
5A Shelby
5A Coshocton
5A Logan
5A Stark
5A Crawford
5A Lorain
5A Summit
5A Cuyahoga
5A Lucas
5A Trumbull
5A Darke
5A Madison
5A Tuscarawas
5A Defiance
5A Mahoning
5A Union
5A Delaware
5A Marion
5A Van Wert
5A Erie
5A Medina
5A Vinton
5A Fairfield
5A Meigs
5A Warren
5A Fayette
5A Mercer
4A Washington
5A Franklin
5A Miami
5A Wayne
5A Fulton
5A Monroe
5A Williams
4A Gallia
5A Montgomery
5A Wood
5A Geauga
5A Morgan
5A Wyandot
5A Greene
5A Morrow
5A Guernsey
5A Muskingum
Key: A - Moist.
1101.7.1
Warm
  humid counties.
Deleted.
1101.7.2
International climate zones.
Deleted.
TABLE 1101.7.2(1)
INTERNATIONAL CLIMATE ZONE
	 DEFINITIONS
Deleted.
TABLE 1101.7.2(2)
INTERNATIONAL CLIMATE ZONE
	 DEFINITIONS
Deleted.
1101.8
Tropical
  climate zone.
Deleted.
1101.9
Interior
  design conditions.
The interior design
  temperatures used for heating and cooling load calculations shall be a maximum
  of 72°F (22°C) for heating and minimum of 75°F (24°C) for
  cooling.
1101.10
Identification.
Materials, systems and equipment shall be identified in a
  manner that will allow a determination of compliance with the applicable
  provisions of this code.
1101.10.1
Building thermal envelope insulation.
An R-value identification mark shall be
  applied by the manufacturer to each piece of building thermal envelope
  insulation that is 12 inches (305 mm) or greater in width. Alternatively, the
  insulation installers shall provide a certification that indicates the type,
  manufacturer and R-value of insulation installed in each element of the
  building thermal envelope. For blown-in or sprayed fiberglass and cellulose
  insulation, the initial installed thickness, settled thickness, settled
  R-value, installed density, coverage area and number of bags installed shall be
  indicated on the certification. For sprayed polyurethane foam (SPF) insulation,
  the installed thickness of the areas covered and the R-value of the installed
  thickness shall be indicated on the certification. For insulated siding, the
  Rvalue shall be on a label on the product's package and shall be indicated on
  the certification. The insulation installer shall sign, date and post the
  certification in a conspicuous location on the job site.
Exception:
For roof insulation
	 installed above the deck, the R-value shall be labeled as required by the
	 material standards specified in Table 906.2.
1101.10.1.1
Blown-in or sprayed roof and ceiling insulation.
The thickness of blown-in or sprayed
  fiberglass and cellulose roof and ceiling insulation shall be written in inches
  (mm) on markers that are installed at not less than one for every 300 square
  feet (28 m2) throughout the attic space. The markers
  shall be affixed to the trusses or joists and marked with the minimum initial
  installed thickness with numbers not less than 1 inch (25 mm) in height. Each
  marker shall face the attic access opening. The thickness and installed R-value
  of sprayed polyurethane foam insulation shall be indicated on the certification
  provided by the insulation installer.
1101.10.2
Insulation mark installation.
Insulating materials shall be installed such that the
  manufacturer's R-value mark is readily observable at
  inspection.
1101.10.3
Fenestration product rating.
U-factors of fenestration products such as windows, doors
  and skylights shall be determined in accordance with NFRC 100.
Exception:
Where required, garage door U-factors shall be determined in
	 accordance with either NFRC 100 or ANSI/DASMA 105.
U-factors shall be determined by an accredited,
	 independent laboratory, and labeled and certified by the
	 manufacturer.
Products lacking such a labeled U-factor shall
	 be assigned a default U-factor from Table 1101.10.3(1) or 1101.10.3(2). The
	 solar heat gain coefficient (SHGC) and visible transmittance (VT) of glazed
	 fenestration products such as windows, glazed doors and skylights shall be
	 determined in accordance with NFRC 200 by an accredited, independent
	 laboratory, and labeled and certified by the manufacturer. Products lacking
	 such a labeled SHGC or VT shall be assigned a default SHGC or VT from Table
	 1101.10.3(3).
TABLE 1101.10.3(1)
DEFAULT GLAZED WINDOW, GLASS DOOR AND
	 SKYLIGHT U-FACTORS
FRAME TYPE
WINDOW AND GLASS
				DOOR
SKYLIGHT
Single pane
Double pane
Single
Double
Metal
1.20
0.80
2.00
1.30
Metal with Thermal Break
1.10
0.65
1.90
1.10
Nonmetal or Metal Clad
0.95
0.55
1.75
1.05
Glazed Block
0.60
TABLE 1101.10.3(2)
DEFAULT OPAQUE DOOR
	 U-FACTORS
DOOR TYPE
OPAQUE
				U-FACTOR
Uninsulated Metal
1.20
Insulated Metal
0.60
Wood
0.50
Insulated, nonmetal edge, not exceeding
				45% glazing, any glazing double pane
0.35
TABLE 1101.10.3(3)
DEFAULT GLAZED FENESTRATION SHGC AND
	 VT
SINGLE GLAZED
DOUBLE GLAZED
GLAZED BLOCK
Clear
Tinted
Clear
Tinted
SHGC
0.8
0.7
0.7
0.6
0.6
VT
0.6
0.3
0.6
0.3
0.6
1101.10.4
Insulation product rating.
The thermal resistance, R-value, of insulation shall be
  determined in accordance with Part 460 of US-FTC CFR Title 16 in units of h *
  ft2 * °F/Btu at a mean temperature of 75°F (24°C).
1101.10.4.1
Insulated siding.
The
  thermal resistance, R-value, of insulated siding shall be determined in
  accordance with ASTM C1363. Installation for testing shall be in accordance
  with the manufacturer's instructions.
1101.11
Installation.
Materials, systems and equipment shall be installed in
  accordance with the manufacturer's instructions and this code.
1101.11.1
Protection of exposed foundation insulation.
Insulation applied to the exterior of
  basement walls, crawl space walls and the perimeter of slab-on-grade floors
  shall have a rigid, opaque and weather-resistant protective covering to prevent
  the degradation of the insulation's thermal performance. The protective
  covering shall cover the exposed exterior insulation and extend not less than 6
  inches (153 mm) below grade.
1101.12
Maintenance information.
Maintenance instructions shall be furnished for equipment
  and systems that require preventive maintenance. Required regular maintenance
  actions shall be clearly stated and incorporated on a readily accessible label.
  The label shall include the title or publication number for the operation and
  maintenance manual for that particular model and type of
  product.
1101.13
Compliance.
Deleted. See Section 1101.2.
1101.13.1
Tropical zone.
Deleted.
1101.14
Certificate (Mandatory).
A permanent certificate shall be completed by the
owner
or
the owner's representative
and
  posted on a wall in the space where the furnace is located, a utility room or
  an approved location inside the building. Where located on an electrical panel,
  the certificate shall not cover or obstruct the visibility of the circuit
  directory label, service disconnect label or other required labels. The
  certificate shall indicate the predominant R-values of insulation installed in
  or on ceilings, roofs, walls, foundation components such as slabs, basement
  walls, crawl space walls and floors, and ducts outside conditioned spaces;
  U-factors of fenestration and the solar heat gain coefficient (SHGC) of
  fenestration, and the results from any required duct system and building
  envelope air leakage testing performed on the building. Where there is more
  than one value for each component, the certificate shall indicate the value
  covering the largest area. The certificate shall indicate the types and
  efficiencies of heating, cooling and service water heating equipment. Where a
  gas-fired unvented room heater, electric furnace, or baseboard electric heater
  is installed in the residence, the certificate shall indicate "gas-fired
  unvented room heater," "electric furnace" or "baseboard electric heater," as
  appropriate. An efficiency shall not be indicated for gas-fired unvented room
  heaters, electric furnaces and electric baseboard heaters.