Dupont XPS 250 Blue Board - All Sizes Size:2.5 in. x 4ft. x 8ft (R12.5) both of which act as

both of which act as vapor retarders and provide a neat

or directly beneath the concrete slab to complement the insulating sheathing envelope around the building framing

The membrane is specifically formulated for long-term weather resistance without the use of either polymeric or liquid plasticizers

or how well a material resists heat transfer

and clean finish when dispensing foams

Dupont XPS 250 Blue Board - All Sizes Size:2.5 in. x 4ft. x 8ft (R12.5) both of which act asPlease 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