Non-Pressure Roof Cleaning… No Pressure Washers used!!
Did You Know….
Shingle roofs over time develop black stains over the entire life of
the shingle. This is caused by algae. The algae is actually a living
organism that is feeding off of the asphalt in the shingle. Left
unattended, this creates shortened shingle life, increases electric
bills because of the insulating factor of the algae and is just not
attractive from the street. Our process involves a high volume and very
low pressure to apply professional quality chemicals and thorough
rinse. No Pressure Washing Equipment is used in the process!!
The black discoloration on your roof isn’t actually dirt at
roof is discolored and streaked because Algae is growing on it. This
plant thrives in the humid climate here in Tennessee. It feeds on the
limestone filler now being used in your shingles. In years past, this
plant simply didn’t have a food source. Therefore, roof
seldom necessary. This all changed with the introduction of fiberglass
roofing shingles during the past 20 years. The fiberglass roofing
shingles made today contain massive amounts of alkaline food that this
algae just loves to eat! That food of course, is the limestone
currently being used by shingle roofing manufacturers.
How in the world does limestone get into fiberglass roofing shingles
you might ask?
It’s very simple. The limestone is added to the asphalt
mixture as a filler or thickener.
Years ago, this was not necessary, as an organic felt mat was used as
the base for the shingles. This mat was saturated with asphalt and then
coated with ceramic granules. Because of the absorptive qualities of
the mat, it was able to soak up enough asphalt to give the finished
roofing shingle sufficient weight. The materials used for the mat were
derived from the cotton rag scrap market.
Well, about 20 years ago this rag market dried up because of the
widespread introduction of cheaper synthetic textiles from China and
India, such as nylon and polyester. The roofing manufacturers
scrambled, and decided to use fiberglass as a mat. However, a problem
quickly arose. The thin fiberglass mat didn’t absorb asphalt
old organic mat did. Something had to be added to the asphalt to
increase the weight of the shingle. So, the manufacturers decided to
use limestone, which is plentiful and cheap.
Because the Algae growing on your roof is now being
“fed” by this
filler, the newer, “limestone enhanced” shingles,
get “dirty” even
faster! It is not the fault of improper installation, or incorrect
shingle selection by your roofing contractor. Sort of like a lawn being
fertilized, this Algae is feeding on your roof!
Algae can cause premature granule loss, and shorten roof life. As your
lighter colored roof is turned black by the accelerated growth of the
Algae, it becomes less reflective, and it retains more heat. This makes
your air conditioner work harder to overcome the increased heat load,
costing you money, and increased discomfort.
This Algae spreads itself by unseen, microscopic airborne spores, just
like a dandelion weed. Your roof algae infestation can easily spread to
your neighbors home. As you can see, a dirty roof is not just an
eyesore. Nobody likes to be told that they have to clean their roof by
their Homeowners Association or Property Manager. However, allowing it
to remain dirty will compromise the efforts of your neighbors, who are
trying to keep their own roofs clean! Many of you have witnessed first
hand what happens when an uncaring neighbor allows weeds to take over
their lawn…. Pretty soon, the weeds spread to the immediate
and then throughout the neighborhood.
The bottom line is this…. Allowing your roof to remain dirty
can, and will, compromise your whole neighborhood!