RMAX® Durasheath® is an energy-efficient thermal insulation board composed of a closed-cell polyisocyanurate (polyiso) foam core bonded to inorganic polymer-coated glass fiber mat facers on each side.
RMAX® Thermal Insulation Board, 4 in Thickness, 48 in W, 96 in L, R-Value: R25, 2 pcf Density, 250 deg F, Compressive Strength: 20 psi, Installation: Adhesive, Fastener, Polyisocyanurate Foam, <1% Water Absorption, <1.5 perm Water Vapor Transmission
| Additional Information | : | <1% Water Absorption, <1.5 perm Water Vapor Transmission |
| Compressive Strength | : | 20 psi |
| Density | : | 2 pcf |
| Installation Type | : | Adhesive, Fastener |
| Length | : | 96 in |
| Material | : | Polyisocyanurate Foam |
| R-Value | : | R25 |
| Temperature Rating | : | 250 deg F |
| Thickness | : | 4 in |
| Width | : | 48 in |
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