R38 Roof Insulation Thickness

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

R38 roof insulation thickness.

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. 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. A recent mckinsey co. 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.

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. 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. So you need to know an insulation product s thickness as well as its r value in order to compare it to another product. How to increase the interior ceiling joist for r38 insulation.

As a foil faced polyisocyanurate foam insulation enerfoil tm s r value actually more than doubles. Eight inches of poor quality insulation may have a higher and better r value than one inch of top quality insulation. Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product. Wall insulation whenever exterior siding is removed on an.

The thickness of your r 38 insulation will depend on the material you have the brand and how it s installed. Product thickness in 10 25 in 2 10 25 2 12 in 8 eco options category. Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in. The fiberglass comes in rolls also known as batts which vary in size.

Ceiling joists are the horizontal boards that span the width of the house resting on the outer wall plates and possibly on. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. 8 bags model k91 view the. Get free shipping on qualified r38 fiberglass insulation or buy online pick up in store today in the building materials.