FOAM BOARD INSULATION 1-1/2" POLYISO 4X8
RMAX 1-1/2" R10 4X8 POLYISO FOAMProduct Overview
RMAX POLYISO FOAM BOARD INSULATION
R10. 1-1/2" THICK x 4X8
Polyisocyanurate (polyiso) insulation board is a rigid, closed-cell foam board known for providing one of the highest R-values per inch among commercially available insulation materials. It is widely used in both commercial and residential construction due to its high thermal performance, moisture resistance, and fire resistance properties.