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Roof Cleaning    ("Soft-Washing" - using low pressure)

House Washing Services, LLC

Ever wonder what those unsightly black streaks are on your roof? These dark streaks are actually algae named "Gloeocapsa Magma". It is an algae that is common in Southern States which feeds on the limestone filler in your shingles.  It is an airborne algae that can move from roof to roof and quickly cover roofs in a neighborhood. Like most algae, the best conditions for spreading are wet, humid and shaded areas. Growth usually starts on the North or shaded side of a roof that take longer to dry from moisture such as rain or dew. If left untreated it may cause premature loss of your roofing granules and the shortening of your roof's life's span. Also, it can affect the temperature of your roof resulting in higher cooling costs. 


There is only one safe and approved method for cleaning the shingles on your roof. These are the guidelines and recommendations from the Asphalt Roof Manufacturers Association (ARMA) and also major shingle manufacturers Owens Corning and GAF.


This cleaning process uses a "Soft-Wash, low pressure" application of cleaning agents to safely remove algae, moss, lichens and airborne pollutants. Never let someone use "high pressure" on your asphalt shingles. This can void the manufacturer's warranty as well as cause extensive granule loss resulting in the loss of heat reflection and premature longevity. Most roofs can be cleaned safely from the gutter line and very seldom do we need to get up on a roof.


Results are not always immediate as we leave the cleaning solution to dwell on your roof until the next rain carries any dried or dead material from your roof. "House Washing Services, LLC" backs up our roof cleaning with a non-prorated (2) year warranty. If any black streaks return within the (2) year period from service date, those areas affected will be re-cleaned free of charge.


Note: This warranty applies only if the entire roof is cleaned and not just a part of the roof.