author: doug tarry jr

... R-Value Wall Calculator Width R/Inch Wall Frame Cavity Insulation Effective R Exterior Air Film 3.5" Brick 3.5 0.1 1" Air Space Tyvec XPS (Type 4) 1.5 5.05 0.17 0.35 1.02 0 7.575 Continuous Insulation Thermal Resistance of Framing ...