WHY DO ROOFERS SOMETIMES HAND-SEAL ASPHALT SHINGLES IN COLD WEATHER?
Why Do Roofers Sometimes Hand-Seal Asphalt Shingles in Cold Weather? Asphalt shingles do not rely only on nails. They also use factory-applied sealant designed to help adjacent shingles bond together. Under suitable warm conditions, heat helps that sealing process occur. Ontario does not always provide those conditions. GAF identifies cold-weather, fall, and winter installation among
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