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Roof Cleaning

Discover Steep-Slope Roof Cleaning

Those ugly black and green streaks or stains on your shingle, tile and metal roofing systems are caused by a hardy type of algae. This type of algae is called gloeocapsa magma. Florida is ground zero of the danger zone for facilities with these this problem.

This type of algae feeds on the crushed limestone that is used in the building materials in and around the roof materials. Rain spreads the algae down the roof causing the black streaks. These streaks are not only unsightly but cause the roof to fail prematurely by loosening the protective granules on shingles, deteriorating the protective coating on the metal and by not allowing the roof to reflect heat properly, which increases cooling cost. Just as mold and mildew can grow on your vinyl siding, wind blown algae can land and grow on your roof. Replacing your roof because of this algae is like replacing your siding instead of having it cleaned. Those unattractive growths can be cleaned by our low-pressure roof cleaning process, restoring your roof to a consistent clean color.

In addition to protecting and extending the life of your roofing system, a clean roof looks better to your customers and tenants and improves the overall image of your facility.

Discover Low-Slope Roof Cleaning

It’s a fact, a clean roof lasts longer and is more energy efficient that a dirty one. Add to this the advent of “rated” reflective roofing, cleaning your roofing system is clearly a necessary task.

The reason for this is to maintain effective long-term Solar Reflectance (‘reflectance’) performance of the roofing surface. It is well known that light- colored roofs get dirty and lose reflectance. The EPA’s Energy Star® program allows cleaning of the roof surface before taking the “aged” Solar Reflectance reading. As light colored membranes accumulate dirt, the reflectance value will decrease. Therefore without regular cleaning, you will not fully benefit from the value of roof reflectance. As roofs become soiled and lose their energy savings potential.

In Florida, where reflective roofs can be most effective, the loss of reflectance due to aging or environmental effects substantially reduces the potential energy savings. The important question, then, is, “Can the reflectance of the roofing be effectively restored periodically, at a maintenance cost that will be more than counterbalanced by the savings from reduced energy-use? The answer is yes..and we’ll explain how.