Exterior Pro Wash is your Guaranteed Safe, No-Pressure Roof Cleaning Company. We use only the highest quality, bio-degradable detergents and the most effective and safest cleaning practices. As experienced professionals, we believe in continuing education, industry certification and providing our clientele with informational articles from peers within our industry who’s cleaning processes mirror our own.
Taken from our Industry Publication: UAMCC, Issue #2 Roof Cleaning
Flat rubber roofs or EPDM roofing material will become dirty and have a darkened appearance over time. These types of roofs are designed to reflect light from their light colored surfaces creating a significant savings in energy costs associated with heating and cooling. As the surface of this type of roofing darkens in color from algae growth and other pollutants, they lose their energy efficiency. In some cases, the manufactures of these types of roofing require the owner to have regular maintenance cleanings performed to keep their warranties from being voided. Both membrane and EPDM roofing can be safely and effectively cleaned using a low pressure cleaning technique.
During this low pressure cleaning, a mild mix of detergents and algaecides is applied to the surface utilizing a low-pressure cleaning solution delivery method. Once the cleaning solution is applied and has been allowed to dwell on the surface for several minutes, it is gently rinsed off using a high volume, low pressure rinse. This cleaning process will not only remove the dirt and algae that is darkening the roof, but it will also restore the energy efficiency that rubber membrane and EPDM roofs are designed to provide. – Lisa Seitz, Liberty Softwash, PA