Commercial foam roofing systems
Foam roofing! Is that really a thing? If you’re not familiar with roofing, especially for commercial buildings, that may very well be your first question. The answer to that question is yes, foam for roofing is really a thing, and what’s more, they spray it on!
This material is a polyurethane that comes in liquid form. Commercial roofing contractors spray this liquid on commercial roofs, and it expands into a foam on an existing roof. It becomes a solid foam roofing layer, providing a solution for some hard challenges on commercial building roofs, inside and out.
In this article, we will discuss the spray foam roofing benefits and answer the question is foam roofing good for all commercial buildings or only for certain applications? When put to the test, which is better, foam roofing vs. TPO? Read on for the answers to these questions and more.
How long do foam roofs last?
Possibly the ultimate advantage of spray foam roofing is longevity. Where most commercial roofing systems promise a 40 to 50-year life expectancy, foam roofing may be the game-changer that commercial building owners have been wanting.
An original spray foam roofing application has a life expectancy of 20 to 35 years if properly maintained. Other factors that can affect this are the climate, foot traffic, weather, and the elements it is exposed to. While that isn’t a long time, it is a respectable length of time and when you factor in a recoat in 20 years, that longevity extends past other commercial roofing materials.
Because spray foam roofing has only been around approximately 50 years, there isn’t a solid reference to reference for comparison. What commercial roofing experts will tell you is that it has had drastic improvements since it was first introduced to the commercial market. With the weather testing available in the roofing industry, experts expect it that foam roofing might last 80 years or longer.
Can you walk on a foam roof?
Yes, you can walk on spray foam roofing according to National Roofing Contractors Association and the Spray Polyurethane Foam Alliance. Spray foam roofing has been tested and proven to sustain up to fifty pounds per square inch. The downside to this type of commercial roofing material, it is easily damaged, thus compromising its integrity, if poked with a sharp object that creates a hole.
With this being noted, your HVAC or plumbing contractor can have access to the roof as needed, without special temporary flooring placed, no problem. However, if they drop anything with a sharp edge or poke a hole into the foam roofing, it will need to be repaired promptly.
Can spray foam rot your roof?
This is a reasonable question, and the answer is straightforward – no spray foam roofing will not rot the original roofing. The polyurethane substance that is used for spray foam roofing is an open-cell material that is breathable, meaning that air flows and moisture pass through it. Foam roofing ensures that any water will not sit there and rot your roof. Instead, this spongy foam absorbs the water and then it passes on through.
Does spray foam stop leaks?
Because spray foam roofing expands as they apply it, it fills in cracks. It will bond to any roofing surface, effectively and quickly resolve roof leaks. A polyurethane spray foam roofing has many benefits for a commercial structure:
- Easy to Install: Polyurethane spray foam roofing is easy to install, which means the roofing contractor installing the material will get the job quickly. This saves the commercial building owner money because it is done so fast and because it doesn’t disrupt the daily business. Spray foam roofing will fit even the most irregular, odd shape of a roof, eliminating the need for the contractor to make special cuts. Even better, they can apply spray foam roofing over existing roofing materials after they have cleaned it.
- Energy Saver: Foam roofing provides air and moisture barriers at the highest R-value, providing a commercial building better insulation. Polyurethane foam keeps heat in during the winter and out in the summer, easing the strain on your HVAC system which lowers your energy costs. With an added silicone top coating, it will resist UV light and protect the foam roofing while absorbing heat.
- Ease of Maintenance: Once foam roofing is installed, there is minimal upkeep, and if maintained properly, industry experts expect it last 50 years or longer. A roof inspection should be performed semiannually, typically in the Fall and in the Spring, with additional inspections recommended if there was a harsh weather event that could have damaged the roof, like a hailstorm or high winds. Should there be any damage caused, they can reapply the spray foam roofing without having to remove the old roofing.
- Seamless, Waterproof: Because foam roofing doesn’t have any seams, there is little to no possible penetrations typical of roof leaks with other roofing systems. They apply it in liquid form, fills any cracks, gaps, or seems of the existing roof. An experienced roofing contractor will work the polyurethane foam to level the roof, which minimizes water ponding common to commercial roofs. The polyurethane will expand, contracting to fit the building and roof, and is less likely to crack or split.
What happens when spray foam insulation gets wet?
When spray foam roofing material gets wet, it completely dries. Because of that, it is not an attracting, breeding, or feeding ground for mold. This can be an extra benefit for areas subject to flooding.
Foam roofing is renewable and sustainable roofing material. The materials that are used for foam roofing are all environmentally friendly:
- Zero Ozone Depleting Potential
- Low in the Emission of VOCs
- Chlorofluorocarbons Free
- Ultra-Low Global Warming Potential
There is very little waste during its lifespan and because it can be applied on top of other roofing materials, there is no material waste with the old roofing being removed. Dial (318) 300-3660 today for quality foam roofing in Shreveport, LA from Keystone General Contracting, LLC.