Insulation R-Value Chart
R-value measures how well certain building insulation materials can resist heat. The higher the R-value, the greater the insulation performance.
When determining how much insulation you need, don't guesstimate, calculate. Know exactly how much you need with our project calculators.
Ready to find the supplies you need in your local store? Use The Home Depot app to locate products and check inventory. We'll take you to the exact aisle and bay.