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 Plywood Subroof
Replacement: After "tearing off"
the old two layers of shingles and
tarpaper, we get a good look at the
existing plywood. In this instance,
penetrations in the roof were caused by a
high-end gutter guard system, which
required fasteners that were actually
screwed through the shingles.
Every area is
critical on a low-slope roof like this one --
and that's why I'm against using any gutter
guards that use screws that pierce the shingle
system. It just doesn't make sense to me,
and you can see the resulting
damage below.
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