| I don't care if there is a
discolored surface on your walls, flooring or even on your roof.
Whenever you see an area, around your home that isn't the same color as
its original condition or its surrounding area, this should be
considered a red flag and you should start to pay some attention,
because there is a good chance that you've got a problem.
I don't know exactly what the problem is here, but it could be a few
things. Let's start with paint overspray. It's not uncommon for painters
that use house painting spraying equipment, to have paint overspray onto
unprotected areas, while their spraying the roof facia board. I have
seen plenty of roofs that are have overspray on them, simply because the
painter didn't take the time to protect these areas.
This area could also be an area that is exposed to more moisture than
other sections of the roof on a regular basis. If you look close enough,
at the roof shingles located directly underneath the arrow, there is a
few rows of shingles that are actually darker than the other ones.
The shingles still look like they're moist or wet, if they are, there's
a good chance that we have moisture accumulating in this area. If the
area is high in humanity and the house is located in a position, where
this area of the home is shaded for most of the day, water could
accumulate for long periods of time and eventually drying up and leaving
calcium deposits on top of the roof shingles.
It's not uncommon to see white calcium deposits in areas, where there is
an excessive moisture.
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