Perlite Roof Insulation R Value

The r value of the insulating concrete depends on its unit weight and thickness.

Perlite roof insulation r value.

To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826. Perlite roof insulation code compliance thermal performance 1 thickness nominal r value resistance inches mm hr ft 2 f btu m c w 3 4 19 1 2 0 0 35 1 25 4 2 7 0 48 1 1 2 38 1 4 1 0 72 2 51 5 4 0 95 3 76 8 1 1 47 for use over metal decks the minimum thickness of energyguard perlite insulation over metal decks is as follows. Composed of expanded perlite reinforcing cellulosic fibers and selected binders. The surface is treated to reduce bitumen absorption assuring proper adhesion of roof membranes.

R value is used in the united states. Provides significantly more thermal insulation r value than wood fiber or gypsum boards. This also means easy hoisting staging and maneuvering around the roof. Consists of recycled newsprint to.

Low thermal insulation board. Rsi r value système international is the metric equivalent. High r value 2 5 r. Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment.

Perlite roof insulation description energyguard perlite roof insulation is a homogeneous board composed of expanded perlite particles selected binders and cellulose fibers which give energyguard perlite roof insulation its insulating efficiency. Provides good dimensional stability excellent insulation value with stable r value and fire resistance.