Owens Corning 1FS Fiberglass 14-1/2 sq. ft. Sill Sealer 50L ft.x3.5W in. 12 Pack por | ago 11, 2026Product Type: Ridged Sill Gasket. Insulation Type: Fiberglass. Coverage Area: 14-1/2 sq ft. Hand Tools And Tool Accessories. Length: 50 ft. Energy Star Certified: No. We believe these guidelines allow us to accomplish that.
