Dupont XPS 250 Blue Board - All Sizes Size:3/4 in. x 4ft. x 8ft (R4) aluminum or copper

aluminum or copper

fiberglass insulation is commonly used in attics to improve energy efficiency

a series of window units may also be combined in singles vertical and horizontal and/or groups

Class A / Class 1 Fire Rating

Dupont XPS 250 Blue Board - All Sizes Size:3/4 in. x 4ft. x 8ft (R4) aluminum or copperPlease Note We Can Not Ship To The Following States: California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington XPS Insulation Blue Board is nonstructural, rigid board insulation manufactured of Extruded Polystyrene Foam (XPS). Blue Board can be used both on the exterior and interior walls to give you a continuous insulation barrier that can increase the