R-Matte Series RMP005 Building Envelope Insulation, 8 ft L, 4 ft W, 1/2 in Thick, R3.2 R-Value, Polyisocyanurate

R-Matte Plus-3 is a versatile multi-application product with a durable white matte (non-glare) reinforced aluminum facer and a reflective reinforced aluminum facer. This thermal insulation is designed for use in cavity walls, masonry walls, vaulted ceilings and many other building envelope continuous insulation applications. R-Matte Plus-3 is an excellent choice for many do it yourself applications to add insulation value to any project.