R38 Roof Insulation Thickness

10 thick r 38c ecotouch thermal batt insulation prevents moisture damage and help assure long roof life by providing 1 of ventilation air space between the insulation and roof deck.

R38 roof insulation thickness.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The fiberglass comes in rolls also known as batts which vary in size. So you need to know an insulation product s thickness as well as its r value in order to compare it to another product. A recent mckinsey co.

The thickness of your r 38 insulation will depend on the material you have the brand and how it s installed. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. As a foil faced polyisocyanurate foam insulation enerfoil tm s r value actually more than doubles. Get free shipping on qualified r38 fiberglass insulation or buy online pick up in store today in the building materials.

8 bags model k91 view the. Insulation insulation material when properly used can make your home more comfortable and energy efficient and can significantly reduce heating and cooling bills throughout the year. Product thickness in 10 25 in 2 10 25 2 12 in 8 eco options category. Insulation is designed to eliminate r value loss caused by compressing standard r 38 products in 2x12 cathedral ceiling construction.

Wall insulation whenever exterior siding is removed on an. Material type r value cost per square foot cost per square foot per r value fiberglass batt 3 5 12 inches thick 13 0 20 to 0 40 0 02 30 0 60 to 1 00 0 03. An r 38 fiberglass batt should be approximately 12 inches thick while the thickness of cellulose insulation of a finished fitted product will larger. Improved insulation is a good step toward improving building efficiency particularly since the atlanta based american society of heating refrigerating and air conditioning engineers ashrae increased minimum roof insulation levels in 2007 in its standard 90 1 the first increase in 18 years and if that isn t enough to spur someone into action.

Eight inches of poor quality insulation may have a higher and better r value than one inch of top quality insulation. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in.