Hello all -
Why is it that houses with vinyl siding seem to get buildups
of algae or mold on the vinyl?
I don't see the problem with wood or aluminum siding. This
old house I'm in (1911) still has its original stippled wood
siding (I -think- it's wood, have wondered if it could be
asbestos-based). The paint is at least 34 years old, but
still -- no mold.
Yet that stuff takes to vinyl like it belonged there. Any
way to keep it under control (other than washing or cleaning
Never noticed it. My house has vinyl siding and while the foundation
on the north side has had some mold, the siding above it never has.
Never took any preventative measures either. I may wash the house
down every few years if the rain does not do enough, but that is all.
Spray it down with a solution of 1/3 vinegar and that will kill any
mold spores. Strong bleach should not be used.
Trim any bushes and tree branches nearby too. Darkness and moisture
make a comfy home for mold.
My house has vinyl siding, and the north side, which is also very shady
in the summer, does get a little green mold. I just wash it off with
some bleachy water every year or two.
What's wrong with bleach in this situation?
I use a product called Jomax House Cleaner and Mildew Killer
Mixing instructions are:
3 1/4 quarts Water
2 1/4 cups Bleach
3/4 cups Jomax
It works very well on the mold I get on my vinyl siding. Spray it on,
let it sit a few minutes, hose it off.
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