The thermal resistance, or R-Value, of insulation material, is used to help determine just how energy efficient the insulation material actually is. Fiberglass batt insulation, for example, has an R-Value of R-13 or a thermal resistance of 13.

One thing to keep in mind with fiberglass batt insulation is it can degrade over time, which will make the thermal resistance weaker or nonexistent. If you left the front door of your home wide open, then there is an R-Value of R-0 because there is nothing there to prevent the air from escaping.

Depending on how thick your walls are and how many doors and windows have been installed in your home, there is a different R-Value in each wall of your home.

According to third-party labs, the R-Value of RetroFoam ranges between 14.5 and 23.7, depending on how thick the wall is.

For homes that have the standard 2×4 studs, the walls can have an R-Value up to R-16 when we install RetroFoam. The great thing about RetroFoam is that it never degrades over time like other forms of insulation, which means the thermal resistance stays the same for the lifetime of the home. This also means that you will save money on your utility bills. Call today or click on the “Request a Free Quote” button to schedule an appointment.