MoisTURe management. Code Minimums for Exterior Foam. Zone 6 2x4 walls: R-7.5 1.25” polyiso @ R-6/in 1.875” mineral wool @ R-4/in 2x6 walls: R-11.25 1.875” polyiso @ R-6/in 2.812” mineral wool @ R-4/in. GWP. Source: Avoiding the Global Warming Impact of Insulation
Source: Avoiding the Global Warming Impact of Insulation
Posted June 01, 2010 03:20 PM by Alex Wilson, buildinggreen.com
Source: How Risky Is Cold OSB Wall Sheathing?
Posted on Nov 5 2010 by Martin Holladay, GBA Advisor