Q:

What are some good sealants for flat roofs?

A:

Quick Answer

Good sealants for flat roofs are acrylic, silicone and foam coatings. SEBS rubber coatings, also known as thermoplastic elastomers, are a popular and economical choice for flat roof coating.

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Full Answer

Acrylic sealants are water-based materials without a need for additional component mixing. They are popular for their low flammability and less potential for toxicity hazards. They come in a variety of colors to match the building’s color scheme. Silicone coatings are most commonly used to protect spray polyurethane foam roofs due to the coating’s permeability. They suit well for areas with extreme temperature ranges and frequent UV exposure.

Foam sealants are a common choice for built-up roofs or single-ply roofs. They are energy efficient and cost efficient with long life expectancy. Rubber coatings are used on most types of concrete, metal, urethane foam, modified bitumen and non-plasticized single-ply membranes. It is a low-permeable, wash-off resistant product with superior adhesive capabilities.

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