Rmax Thermasheath-3 is a rigid foam plastic thermal insulation board composed of environmentally sound, closed cell, polyisocyanurate foam bonded to reinforced aluminum foil facers on each side. This popular wall 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. Thermasheath-3 is available in thicknesses from 1" to 4" and in several lengths including custom lengths within manufacturing limits.
Thermasheath-3 is applied to the exterior or interior face of wood or metal studs to cover all studs, sills, plates and header constructions, thereby providing insulation over areas not normally covered by insulation products. You can apply Thermasheath-3 to either the exterior face or interior face of concrete or concrete masonry walls to provide an insulation layer over the entire surface. When used on the inside face of walls, Thermasheath-3 must be covered by an approved thermal barrier. Thermasheath-3 is Energy Star approved.