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Call Now: 443-891-6109

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Call Now: 443-891-6109

Request a Quote

Usually, every 1-3 years depending on the density of trees and overall humidity AND must be done by a professional. It is a widely accepted fact that roof cleaning and maintenance do not only prolong its life; it also gives a more appealing and aesthetic look to your property.


The minute you begin to notice the formation of dark-colored areas on your shingles roof, you need to be concerned. Such occurrence is predominant in the country’s humid parts and is often caused by Gloeocapsa magma’s algae.

How do overgrown trees and humidity affect the growth of algae on my shingles roof?

The growth of Gloeocapsa magma, a common species of algae on shingles, has become more prevalent over the last twenty years. These microorganisms thrive on moist conditions and spread by releasing spores into the air. When you live in a prone to high humidity climate, you would have to worry about the growth of algae on your shingles.


Some of the ideal conditions for algae’s growth on shingles are humidity, sunlight, and standing water on your rooftop. Similarly, overgrown trees and the density of trees contribute to algae’s growth on your shingles. Overgrown trees tend to shade parts of your roof from drying up quickly, causing them to become damp and a breeding ground for algae.

How often should I clean my roof

The lifespan of your roof pretty much depends on how well you maintain it. In other words, you are likely to save money if your roof remains solid for a long time. How often you clean your roof is also very important as it affects your shingles’ general life span.


The density and kind of trees surrounding your home and your area’s weather are factors that determine how often you should clean your roof. Based on these factors, experts recommend you clean your roof every 1-3 years. The following are reasons why you should clean your shingles roof more often.

  • Organisms such as algae, mold, and lichens feed on shingles’ organic content, thereby damaging it.
  • Shingles will not absorb heat if they are covered by algae and mold, leading to an increase in heating your attic and cooling costs.
  • The presence of algae and other microorganisms on your roof shingles may affect the warranty of your shingles.
  • Cleaning your shingles more frequently would save you the cost of re-roofing.

Trimming the trees

Apart from cleaning your shingles to eliminate algae growth, it is also vital you endeavor to trim down overgrown trees. You should limit the number of trees around your roof. The basic way algae get on the roof is by transfer from trees. So you would need to trim down trees hovering around your roof.

Who should clean my shingles roof

The best way to remove the growth of algae and other microorganisms on your shingles is by having them washed off by a professional. Doing it yourself may not be ideal as you may lack the core skills and knowledge in carrying out a safe roof cleaning. It is much safer you engage the service of a professional team to wash your roof safely.

Contact us today at Extreme Clean Power Washing Services for a free quote! (443-891-6109)

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