394 In. D X 48 In. W. X 2 In. H. Fiberglass Radiant Barrier Thermal Insulation R por | jul 31, 2026D X 48 In. W. X 2 In. H. Fiberglass Radiant Barrier Thermal Insulation Roll, Yellow Wall Block, R Value 7. Nominal Product Depth (in) 394. The material of glass wool roll felt is glass fiber, the core material is glass wool.
