Southeastern Michigan - Residential & Commerical
855 377 9337

Roof Cleaning

roof-cleaning1In most cases, the stains and streaks are a form of algae commonly known as Gloeocapsa Magma. This type of algae thrives in humid and warm climates and usually appears first on the North slope of the roof where shade is. Our revolutionary roof cleaner that removes green and black algae, mildew, fungus, and lichen stains from roofs, siding, decks, brick, concrete, and other exterior surfaces. It’s a biodegradable, non-corrosive chemical that does not require damaging power washing and/or brushing techniques. In fact, no rinsing is required & your landscaping will not be compromised.

Your Roof Is Under Biological Attack

roof-cleaning2The most common culprit causing these unsightly stains on asphalt roofs is a bluegreen algae called Gloeocapsa magma. Over the past 25 years, this strain of algae has become more hardy and has migrated to less humid environments. It has now become a common sight on asphalt roofs across 80% of the United States. The unsightly growth usually occurs on the north or west side, as well as, shaded areas of the roof. As the algae grows and decomposes, it holds moisture which accelerates its growth.

Your Ugly, Stained Roof Can Look New Again

roof-cleaning3Roof stains caused by algae attack start out as areas of light discoloration then turn to unsightly black or dark brown streaks. If not stopped, the entire roof will become an even worse eyesore as the algae continues to grow and deteriorate. These ugly roof stains detract from your home’s curb appeal, pride of ownership, and may affect its resale value. Realtors almost always recommend removing these unsightly stains from your roof before listing your home for sale.

Your Roof Will Last Longer

Algae growth can cause damage to your shingles and shorten the life of your asphalt roof. Surface temperatures are also increased because of the dark stains. Its growth holds water on the roof s surfaces
which intensify the sun’s ultraviolet rays like a magnifying glass. The increased moisture and UV rays work to dislodge the protective granules and attack the shingles asphalt coating. Moisture, UV rays, and thermal movement from temperature extremes are your roof s greatest enemies. All three are intensified by algae growth. It can suck the life from your asphalt roof leading to earlier than necessary roof replacement.


Through the years,

when Dr. Sweep climbed daily upon homeowners’ roofs to sweep or repair a chimney, we quickly and consistently recognized the need for professional roof cleaning. As few companies locally offered this service, and as we had this expertise, we determined years ago to provide valuable roof cleaning to homeowners.

Dirty Roofs Can Lead To Future Expenses

Homeowners often do not recognize that they have a moldy roof and that it can ruin roof shingles and lead to the purchase of new shingles and eventually a new, expensive roof. Green mold forms from area trees above the roofs, and a new black mold with black streaks has begun to form on the north side of Michigan homes.

Thus, cleaning your roof once a year will preserve your roof. And, Dr. Sweep has the expertise and equipment to clean your roof with excellence.

We Clean Roofs Without Harsh, Dangerous Chemicals

Dr. Sweep brings roofs back to life. We stand apart from local companies that use harsh and dangerous chemicals to clean roofs. We use only biodegradable methods that will not harm animals or the environment.

Our process involves removing dirt, tree sap, algae, moss, fungi, and other substances. As cleaning a roof is dangerous, especially a moldy roof, we know how to safely move around your roof. We use the right tools and equipment to clean your roof professionally.


We invite you to contact us at
855 DR SWEEP (855.377.9337)