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Atlas polyiso insulation sheets are rigid, closed-cell foam boards with a foil facing, designed for walls and other building applications. The Energy Shield XR model offers moisture resistance, UV stability, and 25 psi compressive strength, making it suitable for above- or below-grade walls, under-slab, and masonry. Compared with other polyiso boards, it provides similar thermal performance but lacks a manufacturer warranty and is sold as surplus or discounted material. It suits contractors and DIYers insulating basements, foundations, or framed walls.
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Lowest price we've seen: $1,518.70 on Nov 12 at Insulation4US. Tracked across 1 store since Nov 12.
These are new polyisocyanurate (polyiso) rigid foam insulation sheets from Atlas, made in the USA. The closed-cell foam core comes with a choice of facings. The sheets are easy to cut and install, resist indentation and crushing, and are non-load-bearing. They are A-grade, meaning perfect condition and identical to supplier-available material.
They are made for commercial, industrial, institutional and residential installations, and are designed for walls. Three models are offered: Energy Shield XR (ESXR), Energy Shield Pro (ESPRO) and Rboard.
Energy Shield XR has impermeable foil facers. It suits above- or below-grade exterior foundation walls, under-slab use, wood or steel framed walls, and masonry or concrete walls. Energy Shield Pro has aluminum foil facing, reflective on one side and white acrylic coated on the other. It suits exterior wood or steel framed walls with or without sheathing, masonry or concrete walls, exposed interior walls and ceilings, and attics and crawlspaces. Rboard has coated-glass facers that are non-reflective, vapor permeable and water-resistant. It is used as exterior or interior sheathing over wood or steel framed walls, CMU, block and concrete walls.
