Roofing Sealants

Roofing Sealants – Trusted Protection for Durable, Weather-Resistant Roofs

Our Roofing Sealants category offers a selection of premium products designed to protect and extend the life of your roof. Featuring Lanco Siliconizer 1000 for superior water repellency, Polyguard Deckguard HT, and Through the Roof sealants in both gallon containers and cartridges, these sealants provide excellent adhesion, flexibility, and weather resistance. Ideal for repairs, flashing, and sealing critical roofing areas, our products help ensure your roof stays secure against moisture, UV exposure, and temperature extremes.

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  • Lanco Siliconizer 1000, 100% Silicone High Solids Waterproof Roof Coating, Rain Safe in 15 Min, Permanent Ponding Water Resistance, One-Coat Coverage, High Reflectivity, 5 Gallon Ultra White Lanco Siliconizer 1000, 100% Silicone High Solids Waterproof Roof Coating, Rain Safe in 15 Min, Permanent Ponding Water Resistance, One-Coat Coverage, High Reflectivity, 5 Gallon Ultra White
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    Lanco Siliconizer 1000, 100% Silicone High Solids Waterproof Roof Coating, Rain Safe in 15 Min, Permanent Ponding Water Resistance, One-Coat Coverage, High Reflectivity, 5 Gallon Ultra White

    Lanco
    $310.79
    Lanco® Siliconizer™ 1000 RC-1062 is a premium 100% silicone, high-solids, moisture-cure roof coating designed for long-lasting waterproofing and extreme weather resistance. Engineered for commercial and residential low-slope and flat roofs,...
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  • Sashco Through the Roof! Clear 10.5 oz Cartridges, Select Quantity
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    Sashco Through the Roof! Clear 10.5 oz Cartridges, Select Quantity

    Sashco
    $42.99 - $105.79
    Through the ROOF!® is a crystal-clear, co-polymer rubber sealant engineered for tough roof repairs that other products can’t handle. It creates a permanent, flexible, and waterproof seal on a wide range of materials—even when applied in...
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  • Sashco Through the Roof! Clear 10.5 oz. Cartridges, AWF Pro 10 oz. Caulking Gun, 18:1 Thrust, Select Cartridge Quantity
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    Sashco Through the Roof! Clear 10.5 oz. Cartridges, AWF Pro 10 oz. Caulking Gun, 18:1 Thrust, Select Cartridge Quantity

    Sashco
    $59.89 - $123.79
    The ultimate leak repair combo for contractors and DIYers. This kit pairs Through the ROOF!® Clear Roof Sealant—known for its crystal-clear finish, extreme flexibility, and all-weather application—with the 18:1 AWF PRO Caulk Gun, a...
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  • Polyguard Deckguard HT Roof Underlayment 3' x 75' Roll
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    Polyguard Deckguard HT Roof Underlayment 3' x 75' Roll

    Polyguard
    $240.79
    Deckguard® HT is a 40-mil high-temperature roofing underlayment membrane designed for sloped roofs in extreme climates. It consists of a premium asphalt compound laminated to a high-strength, anti-skid spider web backing, with a film release liner...
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