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PDFWAC 51-11C-303131

Table C303.1.3(1)Default glazed fenestration U-factors.

Table C303.1.3(1)
Default Glazed Fenestration U-Factors
FRAME TYPE
SINGLE PANE
DOUBLE PANE
SKY-LIGHT
Metal
1.20
0.80
 
Metal with Thermal Break
1.10
0.65
See Table
C303.1.3(4)
Nonmetal or Metal Clad
0.95
0.55
 
Glazed Block
0.60
[Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-303131, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-303131, filed 2/1/13, effective 7/1/13.]
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