#3841 • (38) 4'x4' EnergyGuard Taper Iso Panel A Insulation Sheets Part of Building Materials: Insulation Sheets, Shingles, 4x8 OSB (165770) (timed auction by Bid-2-Buy) Status: Sold 1" - 1.5" 20 PSI (38) Pieces = 608 Sq. Ft.