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There are so many things that go into new construction that you need to think about. How complex is the electrical going to be? Where will the pipes need to go for your plumbing? What kind of roof will you put on the building? In what places will you need new concrete? With so many questions about what it takes, you will likely need help along the way. Our blog is designed to inform you about all the latest things related to construction. No matter how big or small your project may be, you'll find the guidance you're looking for to make informed decisions.

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The Latest On Construction

3 Things You Need To Understand About Commercial Spray Foam Roofing

by Robert Larson

If you are thinking about adding a spray foam roof to your commercial building, it is essential to understand how this type of roof works and functions.

#1: Spray Foam Roofing Consists of Three Parts

The name may sound simple, but a spray foam roof is actually consisting of three different layers. A spray foam roof consists of a spray polyurethane foam, a silicone coating, and granules.

#2: How the Spray Foam Roof Is Applied

The foam is created by heating together two chemicals and spraying it onto your existing roof system using a heated hose. As the foam is applied, it increases in size. How thick the foam is applied will depend on your roof system. The foam should be applied so that there is a slight slope to the roof to account for water run-off.

After the foam is in place, a layer of silicone coating is adding on top of the foam. This is a thinner layer; its job is to protect the foam from sun damage. Generally, two coats of silicone are applied, with the topcoat being sprayed with granules. The granules are there to add traction for walking on the roof and to help strengthen the roof further.

#3: It Can Be Applied Over Existing Roofs

A spray foam roof is applied on top of an existing roof system. You can apply a spray foam roof on top of a wide range of existing roof systems. For example, you can apply it on top of a metal roof, a TPO roof, an EPDM roof, modified bitumen, or even a built-up roof.

The type of existing roof that you have in place will impact the prep work that has to be done to prepare for the installation of a spray foam roof on top. For example, a rust inhibitor primer may need to be added to the roof with a metal roof first. Or, with a TPO or EPDM roof, a cover board may need to be installed first. If there is gravel with a built-up roof, that will have to be removed before the foam can be applied. A modified bitumen usually doesn't require any more prep work than just cleaning things up.

A spray foam roof can work with existing roof structures and provide your roof with further protection.

You can add a spray foam roof on top of an existing roof as long as you properly prep the roof's surface first. A spray foam roof consists of three layers and will provide your roof with continued protection against the elements.

Contact a commercial spray foam roofing company to learn more.