R-value is a measure of an insulation material’s ability to resist heat flow. The higher the R-value, the better the material insulates and the greater its resistance to heat transfer. The R-value is typically based on the thickness and type of material used. It’s important to note that a higher R-value is more effective in climates where there is a significant variation between indoo... https://tumblrblog.com/understanding-the-r-value-of-insulation-whats-best-for-paducah/