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Table of Maximum Fenestration U-Factor Requirements for New Homes as Listed in the 2009-2021 IECC and IRC

The maximum U-Factor and Solar Heat Gain Coefficient (SHGC) requirements for fenestration (windows) and skylights in new homes, as listed in the 2009, 2012, 2015, 2018, and 2021 International Energy Code (IECC) and the 2009, 2012, 2015, 2018, and 2021 International Residential Code (IRC), can be...

Table of Maximum Fenestration U-Factor Requirements for New Homes as Listed in the 2009-2021 IECC and IRC

Publication Date

Wed, 09/01/2021 - 12:00

Skylight Shaft Walls

Guide describing insulation techniques for skylight shaft walls.