Johns Manville Polyisocyanurate Insulation R Value

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

Johns manville polyisocyanurate insulation r value.

Provides high r value per inch in built up modified bitumen metal roof and single ply roof systems and approved for direct application to steel decks. 2 in x 4 ft x 8 ft. Johns manville ap foil faced foam sheathing board is rigid polyisocynurate foam sheathing that provides exceptional heat moisture and air control to. Closed cell polyisocyanurate foam core.

High r value 2 5 r. Nominal size ranges from 47 75 to 48 25 by 95 75 to 96 25. Shop johns manville r 13 common. Highest r value per inch of any rigid board insulation.

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. Component type i single ply refer to the safe for use instructions and product label prior to using this product. Provides significantly more thermal insulation r value than wood fiber or gypsum boards. Additionally trymer pir is offered in a variety of different densities and compressive strengths to ensure the product consistency is suited for the unique needs of.

Does not melt when exposed to flame versus other types of rigid foam board astm e84 the low permeability of foil facing coupled with polyiso s high thermal performance make it ideal for controlling condensation in walls.