amvic SB25XS1158P High-Density Reflective Insulation, 8 ft L, 4 ft W, 1.15 in Thick, 5 R-Value

SilveRboard is a rigid insulation board made from Expanded Polystyrene (EPS) covered with a layer of polypropylene reflective lamination on both sides. This highly effective combination of materials offers high compressive strength and great thermal performance when used in below grade and under slab applications. The double-sided lamination dramatically increases board strength and flexibility, reducing site damage and waste. The availability of larger panels and laminated film help improve jobsite efficiency and reduce labor costs. SilveRboard has a high compressive strength making it an ideal solution for majority of below grade applications such as foundation walls and below concrete slabs. The reflective lamination can serve as a vapor barrier when taped and sealed.