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5 Common Problems You’ll Face Using SPF Roofs

Spray polyurethane foam roofs are the best roofing materials available for commercial properties and buildings. They’re great as cladding and fireproofing materials too. However, their capabilities do not indicate that they have zero weaknesses — SPF has its respective issues, and they’re very easy to solve.

Here are five of the most common issues most property owners face with SPF roofing materials.

Installation Windows Are Few and Far in Between

A spray foam is a liquid that expands when it’s heated up, then it hardens very quickly after it cools. This makes it challenging to install in cold weather because the temperature of the surrounding air can have a big impact on how quickly it will harden. This can make the foam installation process more difficult and potentially cause the foam to not adhere properly to the structure or not be able to be installed at all.

The best solution to overcome this challenge is to contact your roofer ahead of the roofing installation season. In doing so, you have a schedule that guarantees they can apply your new roof to your property in no time.

Potential for Overspraying

To overspray polyurethane foam, a skilled professional might use a spray nozzle that has a higher flow rate than most standard systems. This causes an overspray pattern wider than 2 feet. This can be problematic because overspraying creates a mess and creates an air barrier that is not strong enough to resist the elements.

Spray polyurethane foam can be applied to roofs without overspraying. The foam is applied using a machine that sprays a foam solution to the roof, and the solution separates into droplets on the surface. It will require an experienced hand and excellent training to achieve such results, though.

Possible Frequent Maintenance

Spray polyurethane foam, or SPF, is an innovative solution for owning and replacing roofs and other buildings. It’s a durable, long-lasting and effective material. However, SPF roofs require more frequent maintenance than their traditional counterparts do because they are less resistant to water erosion.

Water erosion occurs when the foam is wet, because the foam is less dense than water and will float on top of the water. This causes a gap between the concrete on which the foam is sprayed and the ground below. As rain hits, water has a tendency to flow down into this gap, causing further eroding and damage of concrete.

Impact Resistance Inconsistency

SPF has poor impact resistance because it is low in density and because its fibers are not densely packed. This means that a piece of SPF is more likely to break into pieces than a piece of EPS, which is dense and tightly packed.

However, with proper installation planning and application, SPF can increase its density and pack its fibers enough to prevent sudden water erosion and improve its impact resistance.

Puncturing Potential

SPF is a polymer foam that can easily be punctured by sharp objects. It is important to use the correct tool for the job and to properly screen the area before applying the SPF. SPF is a type of spray foam that can easily puncture and weaken, so the best way to prevent it from happening is to use a layer of a type of sealant over the SPF when this happens.

You can always trust us at Ener Spray to provide you with the best spray polyurethane foam installation for all your roofing and cladding needs. Contact us today to learn more about everything that we can do for you.