This site contains affiliate links for which we may be compensated.
Johns Manville AP Foil-Faced Polyisocyanurate Board Insulation$22.35
AP Foil-Faced Polyiso Board Insulation, 0.5-in x 4x8, R-2.9 Rigid polyisocyanurate foam sheathing with foil facer delivers high thermal performance and air, vapor, and water-resistive barrier functions when properly installed. Ideal as continuous exterior insulation for above-grade walls and various residential and commercial applications.,AP Foil-Faced Polyiso Board Insulation, 0.5-in x 4x8, R-2.9 Rigid polyisocyanurate foam sheathing