- Brand:Â Carlisle
- A rigid foam insulating sheathing board designed for use in commercial construction above-grade wall applications to provide continuous, high R-value insulation. The product is composed of a closed-cell polyisocyanurate foam core bonded on both sides to embossed aluminum foil facers. Its facers and foam core are of highly burn-resistant composition, which allows the installation of this product directly over steel studs in many wall assemblies. It can be installed on the exterior or the interior side of the wall assembly. It is offered in different thicknesses, sizes and foam core densities. It is secured in place with fasteners, adhesive or a combination of the two. Installation technique depends on the wall assembly. It has been fire-tested to NFPA 285 and passes this tough test in many wall assemblies. Carlisle provides R2+ SHEATHE Insulating Sheathing, R2+ accessories and CCW air/vapor barrier membranes for a complete wall weatherization system. ** Increased foil facer from 1.0 mil to 17 mils. **