Frequently Asked Questions About
Pressure Washing And Roof Cleaning

Why should I have the exterior of my residence or business cleaned?
Not only is it important to maintain a clean property for the aesthetic value and much-desired curb appeal, but also to provide lasting protection against building material degradation. When mold, mildew, algae and other environmental pollutants are allowed to remain on the exterior surfaces of a property they can contribute to premature paint failure and can also cause permanent staining on concrete, gutters, and pool decks.

How long can I expect my property to stay clean?
Each and every property is its own unique situation, but on average, most surfaces will stay clean for about one year. Roof surfaces can stay clean for up to three years or longer. There are many determining factors and variables. Trees for instance, will create shaded and damp areas, creating an ideal environment for algae and mildew to develop and thrive in. Unusually dry or damp weather conditions can also have a direct effect on the length of time that a surface will stay clean.

What causes those dark stains on my roof?
The dark streaks and stains seen on many roofs are caused by an algae, scientifically known as gloeocapsa magma. Once present in an area, the algae can quickly spread by airborne spores being carried from rooftop to rooftop by wind, birds and other small animals. All roof types, including asphalt and fiberglass shingle, cement, ceramic and clay tile as well as wood shake or metal are susceptible to algae infestation.

Can a roof be cleaned with a pressure washer?
Honestly, yes. Is it a good idea? Absolutely not! Highly pressurized water can temporarily remove the visible stains, but the toll it takes on the roofing material can be extremely costly. Not only does it not destroy all the algae spores, but it can remove granules from shingled roofs and cause color-fading on tile roofs. Replacing a roof is expensive, not to mention the stress and frustration of having to do so because of a prematurely failing roofing system that’s been damaged by too much pressure.

Water leaks can also be a major concern. Often these leaks go undetected for weeks or months, causing even more damage to the wooden trusses and rafters in the attic areas.The above-mentioned questions are but a few of the many routinely asked.

Please feel free to contact us with any and all questions or concerns that you may have.