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| Durasheath |
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Sheathing Insulation
Rmax Durasheath is a rigid foam plastic thermal insulation board composed of polyisocyanurate foam bonded to specially coated glass fiber facers on each side. This sheathing insulation is suitable for use in walls and some limited roofing applications in new commercial, residential, agricultural, and industrial buildings and in thermal retrofit construction within existing buildings. Durasheath is available in standard four (4) foot wide panels. Standard panel lengths are eight (8) and nine (9) feet. Custom length panels are available for special orders. See "Thermal Properties" for standard thicknesses and thermal resistance values of Durasheath.
Durasheath is shipped in bundles that are approximately 48 inches high and wrapped in plastic for easy handling.
Durasheath is applied to the exterior face of wood or metal studs to cover all studs, sills, plates and header constructions in order to provide insulation over details not normally covered by insulation products. Durasheath is applied to either the exterior face or interior face of concrete or concrete masonry walls to provide an insulation layer over the entire surface. |
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Density, Overall : 2.0 pcf
Compressive Strength, Avg.: 20 psi (Average)
Flame Spread, Core : 25 or less
Smoke Developed : 215 or less
Water Vapor Transmission : > 1 perm
Water Absorption : < 1%
Dimensional Stability : < 4%
Service Temperatures : -40'F to + 250'F |
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