Most people don’t devote much time to thinking about roof insulation ... The material used for the rigid insulation board will affect the R-Value as well as the cost; the higher the R-Value ...

Rigid foam sheeting has an R-value ranging from R-5 to R ... 5-1/2 inches of combined fiberglass and foam insulation. To effectively ventilate your roof, create a 1-inch airspace from the soffit ...

After 10 years in print journalism, Nick transitioned to the home improvement space. He has specialized in maintenance, mortgages, home warranties, moving, car shipping, home security and more for ...

This expensive board is commonly used in roofing applications ... and resulting in a lower R-Value. It has good sound control qualities as well. Like rigid foam insulation, the standard ...

The R-value for these large projects is often based on an overall calculation of the R-values in specific areas of the building, such as the roof ... Polyurethane foam insulation properly ...

Here’s how it works on a roof, and it’s especially ... The other issue is insulation levels. Two inches of rigid foam has an R value of only about 10, which is not enough to code for new ...

“If you want to reduce heat loss over the building’s lifespan, laying insulation along the foundation is probably cost effective.” 2. R-value ... Rigid board insulation consists of solid ...