R 38 Rigid Roof Insulation

When choosing rigid foam insulation you have three main options.

R 38 rigid roof insulation.

Know exactly how much you need with our project calculators. I m designing a house with a cathedral ceiling with exposed structural beams with structural decking above and then rigid foam insulation above the decking. After the roof deck is ready the rigid foam insulation is installed. The higher the r value the greater the insulation performance.

When determining how much insulation you need don t guesstimate calculate. R value measures how well certain building insulation materials can resist heat. With premium polyiso manufacturing atlas is able to produce the highest effective r values with minimal material thickness. R panel is manufactured with a closed cell polyisocyanurate foam core bonded to fiberglass reinforced facers and designed for use over metal nailable and non nailable roof decks with a variety of membrane systems.

When it comes to insulation performance the difference is in the details. 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. Let s use the r value of iko s polyiso insulation enerfoil tm as an example. All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered.

Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. Most insulation manufacturers will first list their insulation s r value for a one inch sample then they ll give you a chart demonstrating the other r values you can achieve if you install a thicker version of their product. The r value is a measurement of the heat loss and heat gain. Knauf insulation r 38 ecobatt kraft faced high density fiberglass insulation batt 10 1 4 in.

Sized for proper ventilation r 38c ecotouch thermal batt insulation is designed to eliminate r value loss caused by compressing standard r 38 products in 2x12 cathedral ceiling construction. This type of rigid foam usually comes with a reflective foil facing on both sides so it can also serve as a radiant barrier. Known as polyiso for short polyisocyanurate foam has the highest r value per inch r 6 5 to r 6 8 of any rigid insulation. Where do i find out how thick my.

Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency.