Wash. Admin. Code § 51-11C-610711

Current through Register Vol. 24-20, October 15, 2024
Section 51-11C-610711 - Table A107.1(1)Default U-factors for doors

Table A107.1(1)

Default U-factors for Doors

Door TypeNoGlazed FenestrationSingle GlazingDoubleGlazingwith 1/4 in.AirspaceDouble Glazing with 1/2in. AirspaceDouble Glazing with e = 0.10, 1/2 in. Argon
Swinging Doors (Rough opening - 38 in. x 82 in.)
Slab Doors
Wood slab in wood framea 0.46
6% glazed fenestration (22 in. x 8 in. lite) - 0.48 0.47 0.46 0.44
25% glazed fenestration (22 in. x 36 in. lite) - 0.58 0.48 0.46 0.42
45% glazed fenestration (22 in. x 64 in. lite) - 0.69 0.49 0.46 0.39
More than 50% glazed fenestration Use Table C303.1.3(1)/R303.1.3(1) as appropriate
Insulated steel slab with wood edge in wood framea 0.16
6% glazed fenestration (22 in. x 8 in. lite) - 0.21 0.20 0.19 0.18
25% glazed fenestration (22 in. x 36 in. lite) - 0.39 0.28 0.26 0.23
45% glazed fenestration (22 in. x 64 in. lite) - 0.58 0.38 0.35 0.26
More than 50% glazed fenestration Use Table C303.1.3(1)/R303.1.3(1) as appropriate
Foam insulated steel slab with metal edge in steel frameb 0.37
6% glazed fenestration (22 in. x 8 in. lite) - 0.44 0.42 0.41 0.39
25% glazed fenestration (22 in. x 36 in. lite) - 0.55 0.50 0.48 0.44
45% glazed fenestration (22 in. x 64 in. lite) - 0.71 0.59 0.56 0.48
More than 50% glazed fenestration Use Table C303.1.3(1)/R303.1.3(1) as appropriate
Cardboard honeycomb slab with metal edge in steel frameb 0.61
Style and Rail Doors
Sliding glass doors/French doors Use Table C303.1.3(1)/R303.1.3(1) as appropriate
Site-Assembled Style and Rail Doors
Aluminum in aluminum frame - 1.32 0.99 0.93 0.79
Aluminum in aluminum frame with thermal break - 1.13 0.80 0.74 0.63

Note: Appendix A Tables A107.1(2) through A107.1(4) may also be used if applicable.

aThermally broken sill (add 0.03 for nonthermally broken sill)

bNonthermally broken sill

Wash. Admin. Code § 51-11C-610711

Amended by WSR 14-24-122, Filed 12/3/2014, effective 1/3/2015

Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. 13-04-056, § 51-11C-610711, filed 2/1/13, effective 7/1/13.