Not true. Maybe the tape is designed to transfer itself from the
adhesive tar strip to the shingle above it in the bundle, but it did
not on the shingles that were blown off. In other words, the tape
remained on the adhesive tar strip thus preventing adhesion.
Furthermore, many of the shingles that were not blown off can be
easily lifted. Gusts on that particular day were 50 mph and we can
expect more of that type of wind in March.
No, it's true. Go to a home improvement store and read the instructions on
any package of shingles. You to NOT need to remove anything from the
shingles when installing them. Your shingles are blowing off for some other
reason. Did you own the house when they were installed?
Correct, that cellophane strip is applied to the back of the shingles to
prevent the adhesive strip of the shingle below it in the bundle from
sticking. When the shingles are installed with the normal exposure the
adhesive strip on the top of the shingle is aligned with a clear area of
the shingle above it. The area under the cellophane tape on the back of
the shingle is not intended to stick to anything but the cellophane
I am afraid that you are incorrect. This is from the shingle
installation instructions found here:
Do not remove parting strip of cellophane tape from the
shingle underside. Its purpose is to prevent the shingles from
sticking together while in the bundle. It does not affect the
application or the effectiveness of the product and, when
removed, creates needless waste.
And from the Tamko shingle instruction PDF found here;
IMPORTANT: It is not necessary to remove the plastic strip from the back
of the shingles.
Perhaps you have an off brand of shingle that requires the removal of
the strip, but I have never seen a shingle that required the removal of
If indeed the cellophane strip is over the top of the asphalt adhesive
on your shingles, then the shingles were installed so incorrectly that
the cellophane strip is the least of your problems. In order for that to
be true, they had to be installed over each other exactly like they were
laying in the bundle.
: The shingles mystery -- it pops up every three months. What IS that clear
tape on the back of shingles for?!! To remove or not to remove ... that is
the question ... answered here!
I was having a discussion with a couple friends about installing a shingle
roof. They both said the clear cellophane tape on the bottom of the shingle
is to be removed before installation. I say that is an integral part of the
bonding system and should be left on. What's the story?
DEAR RON: This is a fairly common question and I feel you will be surprised
by the answer. Both you and your friends are wrong. The tape's sole purpose
is to prevent the shingles from sticking to one another when they are
stacked on top of one another in the pack.
You can clearly see the pieces of tape line up with the blobs of asphalt
cement on the tops of the shingles. These dabs of asphalt cement indeed are
the glue that allows the shingles to bond together once the roofing is
installed. But think for a moment. When you install the shingles, the
cellophane tape is five inches up the roof from the dabs of cement and it
does nothing to help bond one shingle to another.
You do not have to remove the tape. That would be an enormous waste of time.
(I roofed about 6 times a year for 12yrs)
Don\'t you have Google in your part of the world?
Forgive me for continuing the beat a dead horse and I really
appreciate everyone's help here, you guys are the greatest, but yes,
the cellophane strip which belongs on the underside of the shingles
was on top of the asphalt adhesive on shingles that were on the
Incidentally, two roofs are involved corresponding to two house
additions. One addition with the bigger loss of shingles was 1993
while the other was 1996, same contractor. Guess it's a wonder that
the shingles involved didn't fly off sooner. And yes they used
It is conceivable that when the shingles were removed from the
packaging at the time of installation, the cellophane strip, instead
of sticking to the underside of the shingle above in the packaging,
stuck to the tar strip on the shingle below. This scenario requires a
manufacturing defect and a really clueless installer.
Stupidity abounds. The house inspector we used when we bought our house
told us a story about a guy who has a "home handyman" radio show, who
really ought to know something about roofs.
Apparently, somebody installed shingles on a house with the courses
starting at the peak of the roof, not the eaves. It looked good, but
leaked. The show's handyman couldn't figure out what was wrong.
(For people who haven't looked at a roof closely, the problem is that
water flows downhill, and with the roof installed as described, the
water flows off one shingle and *underneath* the one in the next lower
course, thus soaking the roof deck instead of reaching the eaves. On a
properly-installed roof, water flows off one shingle onto the *top* of
the next lower course, repeating this all the way down to the eaves.)
firstname.lastname@example.org (Dave Martindale) wrote in
Sounds fishy. No one is that damn stupid. This was probably one of those
friend of a friend of a friend stories where one of the friends totally
screwed the story up because thay had no idea wtf they wre hearing.
In reality it was probably just a roof that was improperly installed top
down and leaked...just like bottom up sometimes leaks. Shit happens.
Top down shingling:
BTW the book reference above, Roofing with Asphalt Shingles By Mike
Guertin, is great and complete. Picked it up last spring.
Last year, a friend of mine had her furnace replaced. When the contractors
cranked it up and began checking whatever they like to check, they realized
something was really screwy about the air flow. The previous owners of the
house had stuffed tightly packed chunks of foil backed fiberglass insulation
into the cold air returns. Over the years, they'd slid down just far enough
so nobody could see them. Fortunately, she replaced the furnace because it
was an ancient rusting piece of junk. If it had been a reasonably modern
unit that just wasn't working well, hopefully some smart contractor would've
noticed the air flow problem.
In both of my homes, prior owners have painted door hardware, sometimes 2-3
times, based on the colors I found while scraping it off. Some may consider
this to be minor stupidity, but it's not. It's the home improvement
equivalent of having anal sex with a goat with toddlers watching.
The shingles were junk or they were allowed to get hot sitting in the sun
right before installing. I had some handfulls I pulled from a bundle and
laid down. Too sunny and hot. Pull the individuals apart and
strip/partial strips will indeed stick to the sealing areas. I threw them
away or just used them as partials. Your installer didn't.
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