Why Higher R Value In An Attic

Achieving greater r values in exterior walls.

Why higher r value in an attic.

There are many ways to retrofit a home with fiberglass and. An insulating material s resistance to conductive heat flow is measured or rated in terms of its thermal resistance or r value the higher the r value the greater the insulating effectiveness. The higher the r value the better the thermal performance of the insulation. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.

Almost all insulation products have to tell you their r value pipe and duct insulation are the only exceptions. Where you live different climates require different insulation r values. The higher the r value the greater the insulating power. R value is a measure of insulation s ability to resist heat flow.

The r value depends on the type of insulation its thickness and its density. The higher the r value the better the thermal performance of the insulation. Duct wrap is covered so if you re looking at insulation with an r value of 38 from company a and insulation with an r value of 38 from company b you ll know the. Insulation level are specified by r value.

You can achieve better thermal performance in your attic by adding an additional layer of insulation. Your home s age if your home is more than 10 year old you likely need more insulation. R value is a measure of insulation s ability to resist heat traveling through it.