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Description
Information guide describing things to consider in the attic, ceiling, or roof before attempting retrofits of items including HVAC, wiring, or structural systems.
Description
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...