Weight Of Spray Foam Roofing

Open cell spray polyurethane foam also sometimes referred to as low density or 1 2 pound spf weighs between 0 4 and 0 6 pounds cubic foot when fully cured.

Weight of spray foam roofing.

When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. The urethane spray foam roofing system is proven to be one of the best and it s the only seamless roofing system available. It is spray applied to a substrate and typically expands about 150 times its original volume to form a semi rigid flexible non structural plastic insulation. So a 3 inch layer of foam 12 inches by 12 inches should be approximately 1 pound.

At year 10 20 a contractor will add more coating and granules. Spray foam is also great as a roofing system for flat and low slope roofs. Larry typically roofing foam is 2 7 to 3 pound foam. Since a spray foam system consists of spray foam coating and granules after 10 20 years some of the coating and granules will naturally wear away.

Lpa 2500 lpa 2800 and lpa 3000 spray foam roofing can also be applied to vertical surfaces making. Compared to other roofing systems spray polyurethane is a very lightweight option. It is monolithic one single piece with no laps or seams. How does spray foam s weight compare with other.

A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof. This includes foam being sprayed about 1 5 thick with about 20 25 mils of silicone coating on top with embedded granules. Spray foam that s used for a roofing system weighs about one pound per square foot. The foam never gets touched and never loses r value.

Urethane roofs provide excellent insulation for your building paying for themselves within 4 to 10 years depending on if the facility is heated and air conditioned. Lpa 2500 lpa 2800 and lpa 3000 are a two component closed cell polyurethane foam system specifically designed to provide a high performance light weight roofing system for use over a wide variety of roof deck construction and configurations.