reglab/statecodes huggingface dataset:
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-20221 - Section C202.21-U

Current through Register Vol. 24-14, July 15, 2024
U
-FACTOR (THERMAL TRANSMITTANCE).
The coefficient of heat transmission (air to air) through a building component
				or assembly, equal to the time rate of heat flow per unit area and unit
				temperature difference between the warm side and cold side air films (Btu/h
				· ft2
								·
								°F)
				[W/(m2
								· K)].
UNCONDITIONED SPACE.
An
enclosed
				space
within a building that is not a
conditioned
				space
and that is not categorized under Section C402.1.1. Crawlspaces,
				attics and parking garages with natural or mechanical
ventilation
are not considered
enclosed
				spaces
.
UNHEATED SLAB-ON-GRADE FLOOR.
A slab-on-grade
				floor that is not a heated slab-on-grade floor.
UNIFORM ILLUMINATION.
A quality of illumination
				delivered by a lighting system typically comprised of similar fixtures mounted
				at a regular spacing interval. This lighting system provides a uniform contrast
				ratio of no greater than 5:1 maximum-to-minimum ratio throughout the entire
				area served, including task areas.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20221, filed 2/1/13, effective 7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-20222 - Section C202.22-V

Current through Register Vol. 24-14, July 15, 2024
VARIABLE REFRIGERANT FLOW SYSTEM.
An engineered
				direct-expansion (DX) refrigerant system that incorporates a common condensing
				unit, at least one variable capacity compressor, a distributed refrigerant
				piping network to multiple indoor fan heating and cooling units each capable of
				individual zone temperature control, through integral zone temperature control
				devices and a common communications network. Variable refrigerant flow utilizes
				three or more steps of control on common interconnecting piping.
VENTILATION.
The natural or mechanical process of
				supplying conditioned or unconditioned air to, or removing such air from, any
				space.
VENTILATION AIR.
That portion of supply air that
				comes from outside (outdoors) plus any recirculated air that has been treated
				to maintain the desired quality of air within a designated space.
VERTICAL FENESTRATION.
See
				"
FENESTRATION.
"
VISIBLE TRANSMITTANCE [VT].
The ratio of visible
				light entering the space through the fenestration product assembly to the
				incident visible light, visible transmittance, includes the effects of glazing
				material and frame and is expressed as a number between 0 and 1. For skylights,
				VT shall be measured and rated in accordance with NFRC 202.
VISIBLE TRANSMITTANCE - ANNUAL [VT-ANNUAL].
The
				ratio of visible light entering the space through the fenestration product
				assembly to the incident visible light during the course of a year, which
				includes the effects of glazing material, frame, and light well or tubular
				conduit, and is expressed as a number between 0 and 1. For tubular daylighting
				devices, VT-annual shall be measured and rated in accordance with NFRC
				203.
VOLTAGE DROP.
A decrease in voltage caused by
				losses in the wiring system that connect the power source to the load.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20222, filed 2/1/13, effective 7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-20223 - Section C202.23-W

Current through Register Vol. 24-14, July 15, 2024
WALK-IN COOLER.
An enclosed storage space capable
				of being refrigerated to temperatures above 32°F (0°C) and less than
				55°F (12.8°C) that can be walked into, has a ceiling height of not less
				than 7 feet (2134 mm) and has a total chilled storage area of less than 3,000
				square feet (279 m2).
WALK-IN FREEZER.
An enclosed storage space capable
				of being refrigerated to temperatures at or below 32°F (0°C) that can
				be walked into, has a ceiling height of not less than 7 feet (2134 mm) and has
				a total chilled storage area of less than 3,000 square feet (279
				m2).
WALL.
That portion of the
building
				envelope
, including opaque area and
fenestration
,
				that is vertical or tilted at an angle of 60 degrees from horizontal or
				greater. This includes
above-grade walls
and
below-grade walls
, between-floor spandrels, peripheral edges
				of floors, foundation
walls
, roof and basement knee walls,
				dormer walls, gable end walls, walls enclosing a mansard roof, and skylight
				shafts.
WATER HEATER.
Any heating appliance or equipment
				that heats potable water and supplies such water to the potable hot water
				distribution system.
WOOD-FRAMED AND OTHER WALLS.
All other
wall
types, including wood stud
walls
.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20223, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-20224 - Section C202.24 - X, Y, Z

Current through Register Vol. 24-14, July 15, 2024
ZONE.
A space or group of spaces within a building
				with heating or cooling requirements that are sufficiently similar so that
				desired conditions can be maintained throughout using a single controlling
				device.
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-20224, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30000 - Chapter 3 CE - General requirements

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-30000, filed 2/1/13, effective 7/1/13.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30100 - Section C301 - Climate zones

Current through Register Vol. 24-14, July 15, 2024
C301.1 General.
Climate zones from Table C301.1
				shall be used in determining the applicable requirements from Chapter 4.
Table C301.1
Climate Zones and Moisture Regimes
Designations by State and County
Key: A - Moist, B - Dry, C - Marine. Absence of moisture
				designation indicates moisture regime is irrelevant.
WASHINGTON
5B Adams
4C Grays Harbor
4C Pierce
5B Asotin
4C Island
4C San Juan
5B Benton
4C Jefferson
4C Skagit
5B Chelan
4C King
5B Skamania
4C Clallam
4C Kitsap
4C Snohomish
4C Clark
5B Kittitas
5B Spokane
5B Columbia
5B Klickitat
5B Stevens
4C Cowlitz
4C Lewis
4C Thurston
5B Douglas
5B Lincoln
4C Wahkiakum
5B Ferry
4C Mason
5B Walla Walla
5B Franklin
5B Okano-gan
4C Whatcom
5B Garfield
4C Pacific
5B Whitman
5B Grant
5B Pend Oreille
5B Yakima
Statutory
				Authority:
				RCW
				19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-30100, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-30100, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30200 - Section C302 - Design conditions

Current through Register Vol. 24-14, July 15, 2024
C302.1 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.
C302.2 Exterior design conditions.
The heating or
				cooling outdoor design temperatures shall be selected from Appendix
				C.
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-30200, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30300 - Section C303 - Materials, systems and equipment

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-30300, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30310 - Section 303.1-Identification

Current through Register Vol. 24-14, July 15, 2024
C303.1
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.
C303.1.1
Building thermal envelope insulation.
An
R
-value
			 identification mark shall be applied by the manufacturer to each piece of
building thermal envelope
insulation 12 inches (305 mm) or
			 greater in width. Alternately, the insulation installers shall provide a
			 certification listing the type, manufacturer and
R
-value of
			 insulation in stalled in each element of the
building thermal
			 envelope
. For blown or sprayed insulation (fiberglass and cellulose),
			 the initial installed thickness, settled thickness, settled
R
-value, installed density, coverage area and number of bags
			 installed shall be
listed
on the certification. For sprayed
			 polyurethane foam (SPF) insulation, the installed thickness of the areas
			 covered and
R
-value of installed thickness shall be
listed
on the certification. For insulated siding, the
R
-value shall be labeled on the product's package and shall be
			 listed 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 1508.2 of the
International Building
						  Code
.
C303.1.1.1
Blown or sprayed roof/ceiling insulation.
The thickness of
			 blown-in or sprayed fiberglass and cellulose roof/ceiling insulation shall be
			 written in inches (mm) on markers for every 300 square feet (28
			 m2) of attic area throughout the attic space. The
			 markers shall be affixed to the trusses or joists and marked with the minimum
			 initial installed thickness with numbers of not less than 1 inch (25 mm) in
			 height. Each marker shall face the attic access opening. Spray polyur-ethane
			 foam thickness and installed
R
-value shall be
listed
on certification provided by the insulation
			 installer.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-303131 - Table C303.1.3(1)-Default glazed window, glass door and skylight U-factors

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.3(1)
Default Glazed Window, Glass Door and
Skylight
U
-Factors
FRAME TYPE
Window and Glass Door
SKY-LIGHT
SINGLE PANE
DOUBLE PANE
Metal
1.20
0.80
Metal with Thermal Break
1.10
0.65
See Table C303.1.3(4)
FRAME TYPE
Window and Glass Door
SKY-LIGHT
SINGLE PANE
DOUBLE PANE
Nonmetal or Metal Clad
0.95
0.55
Glazed Block
0.60
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-303131, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-303132 - Table C303.1.3(2)-Default door U-factors

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.3(2)
Default Opaque Door
U
-Factors
See Appendix A, Section A107
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-303132, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-303133 - Table C303.1.3(3) - Default glazed fenestration SHGC and VT

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.3(3) Default Glazed Fenestration SHGC and
				VT
SINGLE GLAZED
DOUBLE GLAZED
GLAZE BLOCK
Clear
Tinted
Clear
Tinted
SHGC
0.40
0.40
0.40
0.40
0.40
VT
0.6
0.3
0.6
0.3
0.6
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-303133, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-303134 - Table C303.1.3(4) - Default U-factors for skylights

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.3(4) Default
U
-Factors for
				Skylights
Frame Type
Aluminum Without Thermal Break
Aluminum With Thermal Break
Reinforced Vinyl/Aluminum-
Clad Wood or Vinyl
Wood or Vinyl-Clad Wood/Vinyl Without
							 Reinforcing
Fenestration Type
Single Glazing
glass
U-1.58
U-1.51
U-1.40
U-1.18
acrylic/polycarb
U-1.52
U-1.45
U-1.34
U-1.11
Double Glazing
air
U-1.05
U-0.89
U-0.84
U-0.67
argon
U-1.02
U-0.86
U-0.80
U-0.64
Double Glazing,
e
= 0.20
air
U-0.96
U-0.80
U-0.75
U-0.59
argon
U-0.91
U-0.75
U-0.70
U-0.54
Double Glazing,
e
= 0.10
air
U-0.94
U-0.79
U-0.74
U-0.58
argon
U-0.89
U-0.73
U-0.68
U-0.52
Double Glazing,
e
= 0.05
air
U-0.93
U-0.78
U-0.73
U-0.56
argon
U-0.87
U-0.71
U-0.66
U-0.50
Triple Glazing
air
U-0.90
U-0.70
U-0.67
U-0.51
argon
U-0.87
U-0.69
U-0.64
U-0.48
Triple Glazing,
e
= 0.20
air
U-0.86
U-0.68
U-0.63
U-0.47
argon
U-0.82
U-0.63
U-0.59
U-0.43
Triple Glazing,
e
= 0.20 on 2
							 surfaces
air
U-0.82
U-0.64
U-0.60
U-0.44
argon
U-0.79
U-0.60
U-0.56
U-0.40
Triple Glazing,
e
= 0.10 on 2
							 surfaces
air
U-0.81
U-0.62
U-0.58
U-0.42
argon
U-0.77
U-0.58
U-0.54
U-0.38
Quadruple Glazing,
e
= 0.10 on 2
							 surfaces
air
U-0.78
U-0.59
U-0.55
U-0.39
argon
U-0.74
U-0.56
U-0.52
U-0.36
krypton
U-0.70
U-0.52
U-0.48
U-0.32
1
U
-factors are applicable to both
							 glass and plastic, flat and domed units, all spacers and gaps.
2
Emissivities shall be less than or equal to the value
							 specified.
3
Gap fill shall be assumed to be air unless there is a
							 minimum of 90 percent argon or krypton.
4
Aluminum frame with thermal break is as defined in
							 footnote 1 to Table C303.1.3(5).
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-303134, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-303135 - Table C303.1.3(5) - Small business compliance default table

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.3(5) Small Business Compliance Table Default
U
-Factors for Vertical Glazing
Vertical Glazing Description
Frame Type
Any Frame
Aluminum Thermal
							 Break2
Wood/Vinyl/
Fiberglass
Panes
Low-e1
Spacer
Fill
Double3
A
Any
Argon
0.48
0.41
0.32
B
Any
Argon
0.46
0.39
0.30
C
Any
Argon
0.44
0.37
0.28
C
High Performance
Argon
0.42
0.35
Deemed to comply5
Triple4
A
Any
Air
0.50
0.44
0.26
B
Any
Air
0.45
0.39
0.22
C
Any
Air
0.41
0.34
0.20
Any double low-e
Any
Air
0.35
0.32
0.18
1
Low-eA (emissivity) shall be 0.24 to 0.16.
Low-eB (emissivity) shall be 0.15 to 0.08.
Low-eC (emissivity) shall be 0.07 or less.
2
Aluminum Thermal Break = An aluminum thermal break
							 framed window shall incorporate the following minimum design
							 characteristics:
a) The thermal conductivity of the thermal break
							 material shall be not more than 3.6
							 Btu-in/h/ft2/°F;
b) The thermal break material must produce a gap in
							 the frame material of not less than 0.210 inches; and
c) All metal framing members of the products exposed
							 to interior and exterior air shall incorporate a thermal break meeting the
							 criteria in a) and b) above.
3
A minimum air space of 0.375 inches between panes of
							 glass is required for double glazing.
4
A minimum air space of 0.25 inches between panes of
							 glass is required for triple glazing.
5
Deemed to comply glazing shall not be used for
							 performance compliance.
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-303135, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30315 - Table C303.1.5-U-factors for spandrel panels and glass curtain walls

Current through Register Vol. 24-14, July 15, 2024
Table C303.1.5
U
-Factors for Spandrel
				Panels and Glass Curtain Walls
Rated R-Value of Insulation Between
						Framing Members
None
R-4
R-7
R-10
R-15
R-20
R-25
R-30
Frame Type
Spandrel Panel
A
B
C
D
E
F
G
H
Aluminum without Thermal Break
Single glass pane, stone or metal panel
1
0.360
0.242
0.222
0.212
0.203
0.198
0.195
0.193
Double glass with no low-e coatings
2
0.297
0.233
0.218
0.209
0.202
0.197
0.194
0.192
Triple or low-e glass
3
0.267
0.226
0.214
0.207
0.200
0.196
0.194
0.192
Aluminum with Thermal Break
Single glass pane, stone or metal panel
4
0.350
0.211
0.186
0.173
0.162
0.155
0.151
0.149
Double glass with no low-e coatings
5
0.278
0.200
0.180
0.170
0.160
0.154
0.151
0.148
Triple or low-e glass
6
0.241
0.191
0.176
0.167
0.159
0.153
0.150
0.148
Structural Glazing
Single glass pane, stone or metal panel
7
0.354
0.195
0.163
0.147
0.132
0.123
0.118
0.114
Double glass with no low-e coatings
8
0.274
0.180
0.156
0.142
0.129
0.122
0.117
0.114
Triple or low-e glass
9
0.231
0.169
0.150
0.138
0.127
0.121
0.116
0.113
No Framing, or Insulation is Continuous
Single glass pane, stone or metal panel
10
0.360
0.148
0.102
0.078
0.056
0.044
0.036
0.031
Double glass with no low-e coatings
11
0.297
0.136
0.097
0.075
0.054
0.043
0.035
0.030
Triple or low-e glass
12
0.267
0.129
0.093
0.073
0.053
0.042
0.035
0.030
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30320 - Section C303.2-Installation

Current through Register Vol. 24-14, July 15, 2024
C303.2 Installation.
Materials, systems and
				equipment shall be installed in accordance with the manufacturer's instructions
				and the
International Building Code
.
C303.2.1 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.
C303.2.2 Multiple layers of continuous insulation.
Where two or more layers of continuous insulation board are used in a
				construction assembly, the continuous insulation boards shall be installed in
				accordance with Section C303.2. Where the continuous insulation board
				manufacturer's instructions do not address installation of two or more layers,
				the edge joints between each layer of continuous insulation boards shall be
				staggered.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-30320, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-30330 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-30330, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40000 - Chapter 4 CE - Commercial energy efficiency

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-40000, filed 2/1/13, effective 7/1/13.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40100 - Section C401-General

Current through Register Vol. 24-14, July 15, 2024
C401.1
Scope.
The provisions in this chapter are applicable to commercial
			 buildings and their building sites.
C401.2
Application.
Commercial
			 buildings shall comply with the fossil fuel compliance path according to
			 Section C401.3, or with one of the following:
1. Prescriptive compliance. The prescriptive
			 compliance option requires compliance with Sections C402 through C406, and
			 Sections C408, C409, C410, C411, and C412.
2. Total building performance. The total
			 building performance option requires compliance with Section C407.
3. When adopted by the local jurisdiction,
			 the requirements of Appendix F, Outcome-Based Energy Budget, Sections C408,
			 C409, C410, C411, C412 and any specific sections in Table C407.2 as determined
			 by the local jurisdiction. The Proposed Total UA of the proposed building shall
			 be no more than 20 percent higher than the Allowed Total UA as defined in
			 Section C402.1.5.
C401.2.1
Application to existing buildings.
Additions, alterations,
			 repairs, and changes of space conditioning, occupancy, or use to existing
			 buildings shall comply with Chapter 5.
C401.2.2
Application to process
			 equipment.
Energy using equipment used by a manufacturing, industrial,
			 or commercial process other than for conditioning spaces or maintaining comfort
			 and amenities for the occupants shall comply with Section C401.3.1 Item 2,
			 C403.3.2, Tables C403.3.2(1) through (16) inclusive, Sections C403.3.4.1
			 through C403.3.4.3, C403.7.7, C403.9.2.1, C403.10.3, C403.11.2, C403.11.3,
			 Table C404.2, and Sections C405.8, C410, and C412.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40200 - Section C402 - Building envelope requirements

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				  19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-40200, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40210 - Section C402.1-General (Prescriptive)

Current through Register Vol. 24-14, July 15, 2024
C402.1 General .
Building thermal envelope
				assemblies for buildings that are intended to comply with the code on a
				prescriptive basis, in accordance with the compliance path described in Item 1
				of Section C401.2, shall comply with the following:
1. The opaque portions of the building
			 thermal envelope shall comply with the specific insulation requirements of
			 Section C402.2 and the thermal requirements of either the
R
-value based method of Section C402.1.3, the
U
-,
C
- and
F
-factor based
			 method of Section C402.1.4, or the component performance alternative of Section
			 C402.1.5.
2. Fenestration in
			 building envelope assemblies shall comply with Section C402.4, or the component
			 performance alternative of Section C402.1.5.
3. Air leakage of building envelope
			 assemblies shall comply with Section C402.5.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-40210, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40211 - Section C402.1.1-Low energy buildings

Current through Register Vol. 24-14, July 15, 2024
C402.1.1
Low
			 energy buildings, semi-heated buildings and greenhouses.
Low energy buildings shall comply with Section C402.1.1.1.
				Semi-heated buildings and spaces shall comply with Section C402.1.1.2.
				Greenhouses shall comply with Section C402.1.1.3.
C402.1.1.1
Low energy buildings.
The following buildings, or enclosed portions thereof, separated from the
			 remainder of the building by
building thermal envelope
assemblies complying with this code shall be exempt from all thermal envelope
			 provision of this code:
1. Those that are
			 heated and/or cooled with a peak design rate of energy usage less than 3.4
			 Btu/h × ft2 (10.7
			 W/m2) or 1.0 watt/ft2
			 (10.7 W/m2) of floor area for space conditioning
			 purposes.
2. Those that do not
			 contain
conditioned space
.
3. Unstaffed equipment shelters or cabinets
			 used solely for personal wireless service facilities.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40212 - Section C402.1.2-Equipment buildings

Current through Register Vol. 24-14, July 15, 2024
C402.1.2
Equipment buildings.
Buildings that comply with all of the
			 following shall be exempt from the building thermal envelope provisions of this
			 code:
1. Are separate buildings with floor
			 area no more than 500 square feet (50 m2).
2. Are intended to house electric equipment
			 with installed equipment power totaling at least 7 watts per square foot (75
			 W/m2) and not intended for human
			 occupancy.
3. Are served by
			 mechanical cooling and heating systems sized in accordance with Sections
			 C403.1.2 and C403.3.1.
4. Have a
			 heating system capacity not greater than 17,000 Btu/hr (5 kW) and a heating
			 thermostat set point that is restricted to not more than 50°F
			 (10°C).
5. Have an average wall
			 and roof
U
-factor less than 0.200.
EXCEPTION:
Where the cooling and heating system is a heat pump,
						  the heating capacity is allowed to exceed 17,000 Btu/h provided the heat pump
						  cooling efficiency is at least 15 percent better than the requirements in
						  Tables C403.3.2(2) and C403.3.2(14).
C402.1.2.1
Standalone elevator
			 hoistways.
Elevator hoistways that comply with all of the following
			 shall be exempt from the building thermal envelope and envelope air barrier
			 provisions of this code:
1. Are separate from
			 any other conditioned spaces in the building (do not serve or open into any
			 conditioned, semi-heated or indirectly conditioned space).
2. Have heating and/or cooling equipment
			 sized only to serve the expected elevator loads with thermostat setpoints
			 restricted to heating to no higher than 40°F and cooling to no lower than
			 95°F.
3. Have an area weighted
			 average wall, roof and floor (where applicable)
U
-factor of
			 less than or equal to 0.20. Calculations must include any floor-slab-edges that
			 penetrate the hoistway and thus are considered part of the above-grade
			 walls.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40213 - Section C402.1.3-Insulation component R-value method

Current through Register Vol. 24-14, July 15, 2024
C402.1.3
Insulation component
R-value
-based method.
Building thermal envelope
opaque assemblies shall comply with
			 the requirements of Section C402.2 based on the climate zone specified in
			 Chapter 3. For opaque portions of the
building thermal
			 envelope
intended to comply on an insulation component
R-value
basis, the
R-values
for cavity
			 insulation and continuous insulation shall not be less than that specified in
			 Table C402.1.3. Where cavity insulation is installed in multiple layers, the
			 cavity insulation
R
-values shall be summed to determine
			 compliance with the cavity insulation
R
-value requirements.
			 Where continuous insulation is installed in multiple layers, the continuous
			 insulation
R
-values shall be summed to determine compliance
			 with the continuous insulation
R
-value requirements. Cavity
			 insulation
R
-values shall not be used to determine compliance
			 with the continuous insulation
R
-value requirements in Table
			 C402.1.3. Commercial buildings or portions of commercial buildings enclosing
			 Group R occupancies shall use the
R
-values from the "Group R"
			 column of Table C402.1.3. Commercial buildings or portions of commercial
			 buildings enclosing occupancies other than Group R shall use the
R
-values from the "All other" column of Table
			 C402.1.3.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-40213, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402131 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory
				Authority:
				RCW
				  19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-402131, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-402131, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402132 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory
				Authority:
				RCW
				  19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-402132, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-402132, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402133 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory
				Authority:
				RCW
				  19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-402133, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-402133, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402134 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory
				Authority:
				RCW
				  19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-402134, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-402134, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40214 - Section C402.14-Assembly U-factor, C-factor, or F-factor-based method

Current through Register Vol. 24-14, July 15, 2024
C402.1.4
Assembly
U
-factor,
C
-factor, or
F
-factor-based method.
Building thermal envelope opaque
			 assemblies shall meet the requirements of Section C402.2 based on the climate
			 zone specified in Chapter 3. Building thermal envelope opaque assemblies
			 intended to comply on an assembly
U
-,
C
-, or
F
-factor basis shall have a
U
-,
C
-, or
F
-factor not greater than that
			 specified in Table C402.1.4. Commercial buildings or portions of commercial
			 buildings enclosing Group R occupancies shall use the
U
-,
C
-, or
F
-factor from the "Group R" column of
			 Table C402.1.4. Commercial buildings or portions of commercial buildings
			 enclosing occupancies other than Group R shall use the
U
-,
C
-, or
F
-factor from the "All other" column
			 of Table C402.1.4. The
U
-factors for typical construction
			 assemblies are included in Appendix A. These values shall be used for all
			 calculations. Where proposed construction assemblies are not represented in
			 Appendix A, values shall be calculated in accordance with the ASHRAE
Handbook-Fundamentals
using the framing factors listed in
			 Appendix A where applicable and shall include the thermal bridging effects of
			 framing materials.
C402.1.4.1
Roof/ceiling assembly.
The maximum roof/ceiling assembly
U
-factor shall not exceed that specified in Table C402.1.4
			 based on construction materials used in the roof/ceiling assembly.
C402.1.4.1.1
Suspended ceilings.
Insulation installed on suspended ceilings having removable ceiling tiles shall
			 not be considered part of the assembly
U
-factor of the
			 roof/ceiling construction.
C402.1.4.1.2
Joints staggered.
Continuous insulation board shall be installed not less than two layers, and
			 the edge joints between each layer of insulation shall be staggered, except
			 where insulation tapers to the roof deck at a gutter edge, roof drain, or
			 scupper.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402142 - Table C402.1.4.2-Effective R-values for steel stud wall assemblies

Current through Register Vol. 24-14, July 15, 2024
Table C402.1.4.2 Effective
R
-values For
				Steel Stud Wall Assemblies
NOMINAL STUD DEPTH
						  (inches)
SPACING OF FRAMING
						  (inches)
CAVITY
R
-VALUE
						  (insulation)
CORRECTION FACTOR
						  (
Fc
)
EFFECTIVE
R
-VALUE
						  (ER)(Cavity
R
-Value
×
Fc
)
3 1/2
16
13
0.46
5.98
15
0.43
6.45
3 1/2
24
13
0.55
7.15
15
0.52
7.80
6
16
19
0.37
7.03
21
0.35
7.35
6
24
19
0.45
8.55
21
0.43
9.03
8
16
25
0.31
7.75
24
25
0.38
9.50
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40215 - Section C402.1.5-Component performance alternative

Current through Register Vol. 24-14, July 15, 2024
C402.1.5
Component performance alternative.
Building envelope values and
			 fenestration areas determined in accordance with Equation 4-2 shall be
			 permitted in lieu of compliance with the
U
-factors and
F
-factors in Table C402.1.4 and C402.4 and the maximum
			 allowable fenestra-tion areas in Section C402.4.1.
For buildings with more than one
space conditioning
				category
, component performance compliance shall be demonstrated
				separately for each space conditioning category. Interior partition ceilings,
				walls, fenestration and floors that separate space conditioning areas shall be
				applied to the component performance calculations for the space conditioning
				category with the highest level of space conditioning.
Equation 4-2
Click
				to view image
Click
				to view image
Notes:
1Where multiple vertical
						  fenestration types are proposed and the code maximum area is exceeded, the
U
-value shall be the average Table C402.1.4
U
-value weighted by the proposed vertical fenestration area of
						  each type.
2Where multiple wall types
						  are proposed the
U
-value shall be the average Table C402.1.4
U
-value weighted by the proposed above grade wall area of each
						  type.
3Where multiple roof types
						  are proposed the
U
-value shall be the average Table C402.1.4
U
-value weighted by the proposed roof area of each
						  type.
C402.1.5.1
Component
U
-factors and
F
-factors.
The
U
-factors and
F
-factors for typical construction assemblies are included in
			 Chapter 3 and
Appendix A. These values shall be used for all calculations.
				Where proposed construction assemblies are not represented in Chapter 3 or
				Appendix A, values shall be calculated in accordance with the ASHRAE
Handbook-Fundamentals,
using the framing factors listed in
				Appendix A.
For envelope assemblies containing metal framing, the
U
-factor shall be determined by one of the following
				methods:
1. Results of laboratory
			 measurements according to acceptable methods of test.
2. ASHRAE Handbook-Fundamentals where the
			 metal framing is bonded on one or both sides to a metal skin or
			 covering.
3. The zone method as
			 provided in ASHRAE Handbook-Fundamentals.
4. Effective framing/cavity R-values as
			 provided in Appendix A. When return air ceiling plenums are employed, the
			 roof/ceiling assembly shall:
a. For thermal
			 transmittance purposes, not include the ceiling proper nor the plenum space as
			 part of the assembly; and
b. For
			 gross area purposes, be based upon the interior face of the upper plenum
			 surface.
5. Tables in
			 ASHRAE 90.1 Normative Appendix A.
6. Calculation method for steel-framed walls
			 in accordance with Section C402.1.4.1 and Table C402.1.4.1.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40220 - Section C402.2-Specific insulation requirements

Current through Register Vol. 24-14, July 15, 2024
C402.2
Specific
			 building thermal envelope insulation requirements.
Insulation in
			 building thermal envelope opaque assemblies shall comply with Sections C402.2.1
			 through C402.2.8 and Table C402.1.3.
Where this section refers to installing insulation levels as
				specified in Section C402.1.3, assemblies complying prescriptively with Section
				C402.1.4 and buildings complying with Section C402.1.5 are allowed to install
				alternate levels of insulation so long as the
U
-factor of the
				insulated assembly is less than or equal to the
U
-factor
				required by the respective path.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-40220, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402200 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory
				Authority:
				RCW
				  19.27A.020,
				19.27A.025 and
				chapters
				19.27 and
				34.05 RCW. WSR 13-04-056, §
				51-11C-402200, filed 2/1/13, effective 7/1/13. WSR 13-23-007, §
				51-11C-402200, filed 11/7/2013, effective
				12/8/2013
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40221 - Section C402.2.1-Roof assembly

Current through Register Vol. 24-14, July 15, 2024
C402.2.1
Roof
			 assembly.
The minimum thermal resistance (
R
-value) of
			 the insulating material installed either between the roof framing or
			 continuously on the roof assembly shall be as specified in Table C402.1.3,
			 based on construction materials used in the roof assembly.
EXCEPTIONS:
1. Where tapered insulation is used with insulation
						  entirely above deck, those roof assemblies shall show compliance on a U-factor
						  basis per Section C402.1.4. The effective U-factor shall be determined through
						  the use of Tables A102.2.6(1), A102.2.6(2) and A102.2.6(3).
2. Two layers of insulation are not required where
						  insulation tapers to the roof deck, such as at roof drains. At roof drains, the
						  immediate 24 inch by 24 inch plan area around each roof drain has a minimum
						  insulation requirement of R-13, but otherwise is permitted to be excluded from
						  the roof insulation area-weighted calculations.
C402.2.1.1
Minimum thickness, lowest point.
The minimum thickness of
			 above-deck roof insulation at its lowest point, gutter edge, roof drain or
			 scupper, shall be not less than 1 inch (25 mm).
C402.2.1.2
Suspended ceilings.
Insulation installed on suspended ceilings having removable ceiling tiles shall
			 not be considered part of the minimum thermal resistance
			 (
R
-value) of roof insulation in roof/ ceiling
			 construction.
C402.2.1.3
Skylight curbs.
Skylight curbs shall be insulated to the level of
			 roofs with insulation entirely above deck or R-5, whichever is less.
EXCEPTION:
Unit skylight curbs included as a component of a
						  skylight listed and labeled in accordance with NFRC 100 shall not be required
						  to be insulated.
C402.2.1.4
Rooftop HVAC equipment
			 curbs.
Structural curbs installed to support rooftop HVAC equipment are
			 allowed to interrupt the above roof insulation. The area under the HVAC
			 equipment inside of the equipment curb shall be insulated to a minimum of R-13
			 in all locations where there are not roof openings for ductwork. The annular
			 space between the roof opening and the ductwork shall be sealed to maintain the
			 building air barrier. The plan-view area of the HVAC equipment curb shall be
			 excluded from the prescriptive roof insulation requirements or the
			 area-weighted component performance calculations.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-402211 - Reserved

Current through Register Vol. 24-14, July 15, 2024
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.025 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-056, §
				  51-11C-402211, filed 2/1/13, effective
				  7/1/13.
Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11C - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Commercial › Section 51-11C-40222 - Section C40222-Above-grade walls

Current through Register Vol. 24-14, July 15, 2024
C402.2.2
Above-grade walls.
The minimum thermal resistance
			 (
R
-value) of materials installed in the wall cavity between
			 the framing members and continuously on the walls shall be as specified in
			 Table C402.1.3, based on framing type and construction materials used in the
			 wall assembly. The
R
-value of integral insulation installed in
			 concrete masonry units (CMU) shall not be used in determining compliance with
			 Table C402.1.3 except as otherwise noted in the table. In determining
			 compliance with Table C402.1.4, the use of the
U
-factor of
			 concrete masonry units with integral insulation shall be permitted.
"Mass walls" where used as a component in the thermal envelope
				of a building shall comply with one of the following:
1. Weigh not less than 35 psf (170
			 kg/m2) of wall surface area.
2. Weigh not less than 25 psf (120
			 kg/m2) of wall surface area wheret (pcf) (1,900
			 kg/m3).
3. Have a heat capacity exceeding 7
			 Btu/ft2
									×
									°F (144
			 kJ/m2
									× K).
4. Have a heat capacity exceeding 5
			 Btu/ft2
									×
									°F (103
			 kJ/m2
									× K) where the material weight is not
			 more than 120 pcf (1900 kg/m3).