ISOGARD HD
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Lightweight and easy to cut and install with more boards per pallet, ISOGARD HD cover boards can offer savings from reduced transportation costs, labor and material during application. It contains a closed-cell polyiso core that utilizes IsoGard foam technology, and can provide greater UL fire ratings. Not only is this cover board resistant to extreme weather conditions, it provides the highest thermal performance of any 1/2” insulation cover board product on the market.

With an R-value of 2.5, ISOGARD HD cover boards can provide great energy savings and help achieve points in the Leadership in Energy and Environmental Design (LEED) rating system. ISOGARD HD cover boards are made with fiberglass and a mold* and moisture resistant facer, which does not sustain the growth of damaging fungi or bacteria.

ISOGARD HD cover boards has a compressive strength of 120 PSI to protect a roof from potentially damaging impacts from weather and foot traffic. Using fewer fasteners than comparable cover boards with similar wind uplift performance, this new cover board meets FM Global 1-90 standards. A single 4” x 8” sheet weighs only 11 pounds, allowing for easier handling during installation or repair. 

ISOGARD HD cover board is ideal for applications with numerous Firestone Roofing System membranes, including fully adhered and mechanically attached RubberGard EPDM roofing systems and UltraPly TPO roofing systems, as well as cold-applied and self-adhered Modified Bitumen membranes.

*per ASTM D3273 results

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Product LiteratureISOGARD HD Brochure - Item 1220 (273.9Kb)


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