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The Benefits of SPF (Spray Polyurethane Foam) Roofing

SPF is a type of spray material that expands to create a protective and flexible layer across an existing roof. Even though it’s not one of the most commonly used roofing materials, there are many benefits to using SPF.

Energy Efficiency

The roof insulation properties contained within SPF are energy efficient and can contribute to significant energy savings. The material delivers thermal, air and moisture barriers and keeps buildings insulation in hot and cold weather. This significantly reduces energy consumption and related costs.

A new foam roof has proven to be so energy efficient that the average payback period for a new roof can be reached in as little as five years. Many property owners and managers notice decreased energy costs as soon as their new SPF roofs are installed.

Easier Installation

Before the foaming is installed, the existing roof needs to be prepped for the process. Instead of stripping the existing roof, most companies and contractors will get rid of all dirt, contaminants and dust by vacuuming, air pressure or just sweeping.The first layer is the foam and its created by combining two liquids and sprayed onto the existing roof substrate. As the liquid is sprayed, it creates a foam that expands 20 times in size to form a solid, seamless foam surface. When the foam expands, it’s between 1 and 1.5 inches in thickness.

Once the first layer is completed, the second layer is installed and is composed of elastomeric silicone or acrylic coating with granules. This coating protects the roof and SPF from UV light, weather and normal wear and tear.

After installation is completed, you will have a durable, seamless, moisture-resistant and renewable foam roof covering.

What’s the Cost?

Before you settle on one company to install your SPF roof, it’s important that you get quotes from a few different companies. For a 20,000 square foot commercial roof, the cost will usually be between $4 – $7.00 per square foot in materials and labor to install a typical roofing system. The size and condition of your existing roof have a big impact on the overall cost.

In comparison to other types of roofs, SPF roofing can sometimes be less or more expensive, depending upon your needs and your existing roof. While SPF roofing has many benefits, only a certain number of contractors are qualified to install it, and there is the potential for overspray and more maintenance upkeep.