Wash. Admin. Code § 51-11C-610711 - Table A107.1(1)Default U-factors for doors

Table A107.1(1)

Default U-factors for Doors

Door Type	No Glazed Fenestration	Single Glazing	Double Glazing with 1/4 in. Airspace	Double Glazing with 1/2 in. Airspace	Double 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

Notes

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.