R value / Green Building & Sustainable Home Renovation Information & Advice

Thermal image showing where home heat loss is occurring.
Insulation and soundproofing

How Does Insulation Work?

...r home comfortable. Understanding R values The  R value applied to a material refers to its capacity to resist heat transfer. The R value of most commercially available insulations varies in the range of R3 per inch to around R6 per inch. The higher the number, the more a material resists heat transfer. A typical secti...