#1484 • 18-Pieces 2.6" GAF EnergyGuard Part of GAF EnergyGuard Polyiso Insulation: Flat & Tapered (158071) (timed auction by Bid-2-Buy) Status: Sold 2.6" 18 Pieces LTTR 15 20 PSI 1497 BD FT 576 SQ FT Energy Guard ISO 2.6" x 4' x 8'