Isoshield Non-Vapor-Barrier Insulation Panel - R-5 - 1-1/16" x 4' x 8'

• Dimensions: 1-1/16 in (2,70 cm) T x 4 ft (1,22 m) W x 8 ft (2,44 m) L • Graphite-enhanced expanded polystyrene (EPS) construction for improved thermal performance • Thermal resistance of R5 (RSI 0.88) for continuous exterior wall insulation • Compressive strength of 10 psi (70 kPa) for structural durability under cladding • Perforated metalized film facing on both sides for reflectivity without vapour barrier properties • Non-vapour barrier classification — suitable for wall assemblies requiring moisture diffusion • Square edges for tight, accurate panel-to-panel joints • Designed for above-grade exterior walls in new construction and retrofit projects