A note to our community regarding COVID-19. Learn more

What is r-value insulation?

Thumbtack Editors
Answered

R-value — or thermal resistance value — is a measure of any surface or material’s resistance to heat flow. The greater the R-value, the more insulation the material provides. R-value depends on the thickness, density and type of insulation, as well as the moisture accumulation, age and temperature. 

Ready to hire an Insulation Professional?

You never pay to use Thumbtack: Get cost estimates, contact pros, and even book the job—all for no cost.