|
 Gaithersburg
Maryland Roof Repair: This home
had major shingle "blow offs".
Situated high atop a hill and battered by
westerly winds coming across the
mountains, the Certainteed 25 year
shingles were no match . . .
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A
healthy part of the roof ended up in the
front yard.
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It didn't
help matters that the builder's roofer was
inexperienced in using an air nailer.
The air pressure of the gun was set too high
-- blowing nails right through the shingles --
plus it seems they rushed through the job and
didn't place the nails in the right
spots. We see this all the time. |
This is what
the roof looked like when we arrived. |
As you can
see, the nails were of little use here . .
. |
Now that the
deck has been cleaned and de-nailed we can
start replacing the Certainteed XT25
Shingles. Color: Moire Black. |
|
We're
nailing the new shingles with a Bostitch
Pneumatic Roof Nailer. Note the gauge on
the side. We actually regulate the
pressure right at the gun to set the proper
nail depth. I have NEVER seen another
roofer do this! |
Metal Ridge
Vents are a big source of interior roof leaks
-- especially when they haven't been installed
properly. I've marked water entry points
above. |
The builder
in this subdivision did NOT install any of the
required rubber end plugs. That meant 8
leaks on this house alone and about 280 for
the entire subdivision. I guess they
were too cheap to spend the extra $10 per
house . . . |
We screw
down the ridge vents and then seal all
appropriate areas with the "good stuff" --
Geocel Tripolymer Sealant. It works
about 100 times better than the stuff you get
at Home Depot and will last the life of the
roof. |
|
After about
7 years plastic pipe collars start to
leak. We're replacing all four on this
home. |
|
Aluminum
based pipe collars are the only way to
go. We always upgrade and then seal with
Geocel Tripolymer Sealant to guard against
wind driven rain. There are no callbacks
using this technique . . . EVER! |
|
As you can
see, the new Moire Black 25 year shingles
match the older ones pretty well.
They're never perfect, but since they're the
same brand and color -- it's as good as it
gets! |
Now that's
how to install a pipe collar! |
A common
leak on every home is where the "umbrella"
flashing meets the flu pipe on gas heat
exhausts. The builder never properly
seals them and when water runs down the pipe,
it usually ends up in the basement (or
wherever the heating unit is located). |
|
Geocel
-- the best!
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Here's some
of the old stuff before it gets hauled
away. Good riddance, and off to the next
repair . . . |
