What is the R-value per inch for mineral wool batts?

Mineral wool batts typically have an R-value of around R-3.7 per inch of thickness. This measurement indicates the material's effectiveness as an insulator, with a higher R-value representing better thermal resistance. The R-value per inch is a key factor when determining how much insulation is needed to achieve desired energy efficiency in a building.

For those considering insulation options, understanding the R-value helps in evaluating the performance of different materials, with mineral wool being a popular choice due to its fire-resistant properties and sound absorption capabilities, alongside its thermal resistance.