#2281 • (32) 4'x4' EnergyGuard Taper ISO Panel Q Insulation Sheets Part of 20,449 Sq Ft of Shaw Glue Down Flooring & GAF EnergyGuard Polyiso Insulation (167839) (timed auction by Bid-2-Buy) Status: No sale .5" - 2.5" 20 PSI (32) Pieces = 512 Sq. Ft.