R-VALUE and INSULATION GUIDELINES
R-Value is a measure of insulation’s ability to resist heat passing through it.
The higher the R-Value the better the thermal performance of the insulation.
R-Value is a number given “per inch of thickness”. For example, an insulation type with an R-Value of 5 means “5 per inch of thickness”.
Therefore, a 1” thick layer would have an R-Value of 5; a 2” thick layer an R-Value of 10 and so on.
Thickness matters!
Learn more about the R-Value of each of the 3 types of insulation
US Department of Energy Climate Zones
What Climate Zone is Your Project In?
Req'd Insulation by Climate Zone-New Wood Framed Houses
Req'd Insulation by Climate Zone-Existing Wood Framed Houses
Winter vs. Summer - Insulation Matters!
Net Zero Homes
