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    Polyiso Thermax Sheathing

    Thermax™ Sheathing* is non-structural, rigid board insulation consisting of a glass-fiber-infused polyisocyanurate foam core laminated. Browse our range of insulation products today and feel free to contact a member of our sales team on 786 224 0029 or via Live Chat if you need any advice.

    Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes)
    Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes)

    Dow

    from $29.52

    weather-mate-flashing
    Dow Liquidarmor Flashing Sealant 5 Gallon Pail

    Dow

    $294.12

    Dow Weathermate Flashing (All Sizes)
    Dow Weathermate Flashing (All Sizes)

    Dow

    from $48.75

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