There are many companies that offer spray foam roofing applications and there are even do-it-yourself kits. However, spray foam roofs need to be applied by experienced roofing companies who have the knowledge, equipment and skill to get the job done right. Spray roofing can save a lot of money over time, but only if it is applied properly. Here is a rundown of some of the problems that can occur when spray foam roofs are improperly installed.
Uneven Coverage
The application of spray foam is a simple process, but one that takes practice get right. An experienced technician can adjust the speed of application as needed to provide a uniform layer of foam. If the roof is not evenly coated, the resulting surface will have weak spots that are prone to leaking. Areas with thin roofing will also hold water which will result in staining of the roof and possible leaks. Thin areas of roofing will also diminish the insulating properties of the foam roof.
Edge Applications
The edges of the roof are the most difficult areas to properly seal when applying a roofing material. This is true whether the roofing material is shingles, metal or foam. An inexperienced person is more likely to make a mistake at the edge of the roof than an experienced installer. The smallest mistake on a roof can create an area that will result in a leak. Even worse, an improperly formed edge may begin to pull away over time and result in the roofing material coming loose from the roof deck.
Property Safety
Spray foam is a chemically stable material that creates a safe roofing material. However, an inexperienced installer can create serious damage by accidentally spraying foam in the wrong place or by allowing airborne foam to blow on to other surfaces. As foam bonds very securely, it is difficult to remove where it is not wanted. There are horror stories of do-it-yourselfers and inexperienced roofing companies letting foam blow onto cars parked near a building. By choosing an experienced and insured company to apply foam roofing, a building owner can reduce the chances of a problem occurring during application.
Application Preparation
Spray foam roofing can last for decades, but only if it is applied properly. Spray foam can be applied over a number of different roofing and building materials, but only if the surface is properly repaired. Loose materials, oils and other substances that may interfere with the foam’s bond to the roof deck will need to be addressed. In addition, spray foam can only be applied when the weather conditions are right. Applying spray foam outside of the recommended temperature and humidity levels can result in a roof that leaks and that does not properly adhere to the building.
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