Weight Of Spray Foam Roofing

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.

Weight of spray foam roofing.

So a 3 inch layer of foam 12 inches by 12 inches should be approximately 1 pound. This weight is measurement of 1 square cubic foot piece of the foam. At year 10 20 a contractor will add more coating and granules. Lpa 2500 lpa 2800 and lpa 3000 spray foam roofing can also be applied to vertical surfaces making.

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. 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. 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. It is monolithic one single piece with no laps or seams.

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. 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. A spray foam roof can be the last roofing system you ll ever need on a building.

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. Compared to other roofing systems spray polyurethane is a very lightweight option. Larry typically roofing foam is 2 7 to 3 pound foam. How does spray foam s weight compare with other.

When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. Spray foam is also great as a roofing system for flat and low slope roofs.