DuPont Styrofoam™

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DuPont™ Styrofoam™ Insulation (formerly known as Blue Board) is a rigid, closed-cell extruded polystyrene foam (XPS) board designed to deliver long-lasting thermal performance and moisture resistance. Trusted since 1941, this nonstructural insulation improves wall system energy efficiency by providing a continuous barrier that can increase effective R-values by up to 20%. Its high compressive strength and low water absorption make it ideal for both interior and exterior applications, helping protect underlying materials from damage.

For a high-performance air and moisture barrier system, pair Styrofoam™ boards with DuPont™ Styrofoam Brand Tape (Formerly known as Weathermate™ Construction Tape) to seal seams and Great Stuff™ Sealants to fill gaps and joints. These accessories work together to minimize air infiltration and maximize energy savings.

When attaching insulation to masonry surfaces, Plasti-Grip® PMF Plastic Masonry Fasteners offer a secure, thermally efficient solution. Available in a range of sizes, they’re easy to install and provide exceptional holding strength in concrete, block, and brick, making them perfect for residential and commercial applications alike.

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  • Styrofoam™ Brand Tape, 3.75" x 165 Feet Styrofoam™ Brand Tape, 3.75" x 165 Feet
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    Styrofoam™ Brand Tape, 3.75" x 165 Feet

    Dupont
    $30.79
    DuPont™ Styrofoam™ Brand Tape is a durable sealing tape with excellent adhesion properties to help protect homes and buildings against moisture and air intrusion. Styrofoam™ Brand Tape is pliable – ensuring a tight seal, even at...
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  • DuPont™ Weathermate™ Construction Tape,  1 7/8"  x 165'
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    DuPont™ Weathermate™ Construction Tape, 1 7/8" x 165'

    Dupont
    $25.79
    DuPont™ Weathermate™ Construction Tape from DuPont is a durable sealing tape with excellent adhesion properties to help protect homes and building against moisture and air intrusion. Weathermate™ Construction Tape is...
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  • Plasti-Grip PMF (Plastic Masonry Fastener), Choice of Sizes Several lengths available to accommodate foam thickness
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    Plasti-Grip PMF (Plastic Masonry Fastener), Choice of Sizes

    Rodenhouse
    $122.79 - $170.79
    Secure rigid and semi-rigid insulation to masonry substrates with TRUFAST®'s Plasti-Grip® PMF Anchor. Engineered with a 2-3/8ʺ diameter washer head and a polypropylene plastic shank, this fastener ensures a tight hold without the need for screws,...
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