Questions & Answers
Down below is a list of our most asked questions from our previous customers, following with an answer.
A: It is easy to see on most homes while the growth is in the process; there are dark black streaks, particularly on the north-facing roof, though once the algae has fully taken over it is sometimes hard to tell. (It’s never too late to remove.) The best place to look to find out if your roof is dirty is below metal roof jacks flashing and skylights. There you should find lighter colored streaks or patches…that is the original color and that is what your roof will look like after we have completed our service!
Q: WHAT ARE THE BLACK STAINS?
A: The black stains are caused by a cyanobacteria frequently referred to as algae (Gloeocapsa Magma) that feeds on organic material (Typically crushed lime stone) now used in composition roof shingles. Algae growth on roofs occurs to varying degrees in all regions of the country, especially those subjected to warm humid conditions.
The Sacramento area has a particular problem with dirty roofs due to the consistent marine layer that often covers the coast and certain inland areas. Nearly all types of roofing are susceptible to staining and discoloration. It is, of course, most visible on lighter colored roofs and less visible on darker shades of roofing.
A: Yes. Pressure washing will dislodge the granules from the surface of the shingles and can scar the shingles causing more problems then you started with. Shingle manufacturers make it very clear that no pressure should be used to clean roofs. Although leaving the roof apparently clean looking, pressure washing alone does not kill the algae and the problem quickly returns. Tile roofs are also susceptible to damage from pressure, particularly the glaze finish and color pigment.
A: As soon as you notice any signs of the shading or staining. The gloeocapsa magma bacteria are relatively easy to remove. Moss and lichen require much more time and effort. Even after the treatment, a small amount of dead moss will remain, left to decompose over time. The best time to treat a dirty roof is before signs of moss or lichen.
A: While their advertising is slick and their giddy actors happily say how wonderful the product is, reading the small print reveals:
There are many more reasons we feel you should avoid these roof cleaning products. Suffice it to say, we feel their sole interest in your roof is a monetary one.
A: Yes. Cleaning your roof can save you money in more ways than one…
A: It would be appreciated if you could do a few things the night before we come out to do the roof cleaning service:
Pretty much just clear everything out away from around the house. We will be rinsing areas around the building during the treatment.
A: We almost exclusively use equipment no louder than a whisper. Occasionally we use a compressor for large commercial projects.
Q: DO YOU HAVE REFERENCES?
A: Yes. We have many happy customers who would love to share their roof cleaning experience with you, please feel free to request a list by e-mail.
Q: ARE YOU INSURED?
A: Yes. We are insured for $1 Million. And we will happily send you a copy of our insurance upon request.
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