Since their inception more than 100 years ago, built-up roofs have earned a tried-and-true reputation as tough, durable and resistant to abuse and foot traffic. But what do you do when you are tired of chasing leaks or when your built-up roof finally does wear out completely?
UV rays oxidize the surface of an asphalt built-up roof, producing a chalk-like residue. As plasticizers leach out of the asphalt, the built-up roof becomes brittle and begins to blister and crack in a pattern that resembles alligator hide, allowing water to penetrate the roof system and cause leaks.
What are your options? You could tear-off your existing roof and install a new built-up system. On a 10,000 square foot commercial building, the tear-off alone could add 150 additional labor hours as well as the cost of renting 3 dumpsters to fill and haul to the local landfill - not to mention the cost of materials and installation of a new built-up roofing system.
But fortunately, complete tear-off and replacement is rarely necessary. A seamless built-up roof coating system is much less expensive, sustainable and a viable alternative in all climates. Roof coatings stop leaks and extend the life of your existing roof by 10 years or more without the cost of tearing-off the existing roof, disposing of it and installing a brand new built-up roof.
Another benefit is return on investment. Reflective coatings are cool roofing systems, which lower energy consumption. They also prevent premature roof deterioration by serving as a sacrificial layer to the elements, and reduce thermal-shock roof damage to the entire structure by moderating the excessive thermal expansion and contraction.
The installation process of a restoration coating system is fairly quick and easy, too:
- First, all known leaks are sealed, including flashings, cracks and splits.
- Next, Spray Polyurethane Foam, or "SPF" is applied to provide insulation, address ponding water areas, and to provide a surface conducive for coatings.
- Finally, the roof coating is applied to the entire roof surface to form a seamless protective membrane that produces a durable, weather-resistant and energy efficient surface and that can be walked on for normal maintenance.
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