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#1
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New roof shingles: Remove thin plastic strips on back of shingles before nailing down?
Putting on new shingles - IKO brand, Chateau type, single (1) tab,
architectural or "designer" style, 100% asphalt (not fiberglass). On the back of each shingle is 3 strips (running the full length of the shingle) near the top, the bottom, and the center. The strips are some sort of shiny black tar, about 1" wide (but not very thick). Two of these strips are solid, and one is intermittent (like a dashed line - - -). The two solid strips are covered by what seems like a very thin, transparent release strip made of plastic. This strip resembles "saran wrap" except it's more "crinkly" when you peel it off and handle it. These black tar strips seem to function as a way to bond or seal the shingles together once they're nailed down and have been heated by the sun. The release strip would function to prevent the shingles from bonding to each other while bundled. What I don't understand is that roofers don't seem to peel the release strips off the shingles before they nail them down (I admit that it seems to take as much time to pick away and peel these release strips off the shingles as it does to nail the shingles down). So, if the purpose of the black tar strips is to help the layers stick to each other, then how can the tar strips function if the release strips are NOT removed from each shingle? The instructions, diagrams, and warnings printed on the wrappers of the shingles say nothing about the black tar strip or the membrane strip that covers them. Should I peel these strips off before the roofers nail them down? |
#2
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Joe wrote:
Putting on new shingles - IKO brand, Chateau type, single (1) tab, architectural or "designer" style, 100% asphalt (not fiberglass). On the back of each shingle is 3 strips (running the full length of the shingle) near the top, the bottom, and the center. The strips are some sort of shiny black tar, about 1" wide (but not very thick). Two of these strips are solid, and one is intermittent (like a dashed line - - -). The two solid strips are covered by what seems like a very thin, transparent release strip made of plastic. This strip resembles "saran wrap" except it's more "crinkly" when you peel it off and handle it. These black tar strips seem to function as a way to bond or seal the shingles together once they're nailed down and have been heated by the sun. The release strip would function to prevent the shingles from bonding to each other while bundled. What I don't understand is that roofers don't seem to peel the release strips off the shingles before they nail them down (I admit that it seems to take as much time to pick away and peel these release strips off the shingles as it does to nail the shingles down). So, if the purpose of the black tar strips is to help the layers stick to each other, then how can the tar strips function if the release strips are NOT removed from each shingle? The instructions, diagrams, and warnings printed on the wrappers of the shingles say nothing about the black tar strip or the membrane strip that covers them. Should I peel these strips off before the roofers nail them down? Joe, Joe, Joe... you gotta learn how to use Google for these kinds of questions. http://www.google.com/search?sourcei...release+strips |
#3
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"Joe" wrote Should I peel these strips off before the roofers nail them down? Yes, if you want to void the warranty and **** the roofers off. |
#4
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The strips are there to make sure the shingles don't seal to one and other
in the bundle. The stripes underneath the shingle line up with the strips of tar on the top of the shingle in the bundle. The tar on top of the shingle is what is to bond to the bottom of the row above it. On allot of shingles "DO NOT REMOVE" is printed on the strip. For some reason they don't want the bottom of the shingle sticking to the tar paper. "Joe" wrote in message om... Putting on new shingles - IKO brand, Chateau type, single (1) tab, architectural or "designer" style, 100% asphalt (not fiberglass). On the back of each shingle is 3 strips (running the full length of the shingle) near the top, the bottom, and the center. The strips are some sort of shiny black tar, about 1" wide (but not very thick). Two of these strips are solid, and one is intermittent (like a dashed line - - -). The two solid strips are covered by what seems like a very thin, transparent release strip made of plastic. This strip resembles "saran wrap" except it's more "crinkly" when you peel it off and handle it. These black tar strips seem to function as a way to bond or seal the shingles together once they're nailed down and have been heated by the sun. The release strip would function to prevent the shingles from bonding to each other while bundled. What I don't understand is that roofers don't seem to peel the release strips off the shingles before they nail them down (I admit that it seems to take as much time to pick away and peel these release strips off the shingles as it does to nail the shingles down). So, if the purpose of the black tar strips is to help the layers stick to each other, then how can the tar strips function if the release strips are NOT removed from each shingle? The instructions, diagrams, and warnings printed on the wrappers of the shingles say nothing about the black tar strip or the membrane strip that covers them. Should I peel these strips off before the roofers nail them down? |
#5
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- Cliff Hartle -
On allot of shingles "DO NOT REMOVE" is printed on the strip. For some reason they don't want the bottom of the shingle sticking to the tar paper. - Nehmo - It wouldn't hurt anything if a shingle stuck to the underlayment . It's already nailed or stapled to it. The "DO NOT..." is just a simple way of saying "It's not necessary to and you wouldn't accomplish anything if you did..." -- ********************* * Nehmo Sergheyev * ********************* |
#6
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On Mon, 22 Nov 2004 03:30:27 +0000, Nehmo Sergheyev wrote:
- Cliff Hartle - On allot of shingles "DO NOT REMOVE" is printed on the strip. For some reason they don't want the bottom of the shingle sticking to the tar paper. - Nehmo - It wouldn't hurt anything if a shingle stuck to the underlayment . It's already nailed or stapled to it. The "DO NOT..." is just a simple way of saying "It's not necessary to and you wouldn't accomplish anything if you did..." Not exactly true. That plastic strip also happens to be the nail line, at least in three tabs. Some manufacturers think it provides a little extra nail holding capability. |
#7
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- Nehmo -
It wouldn't hurt anything if a shingle stuck to the underlayment . It's already nailed or stapled to it. The "DO NOT..." is just a simple way of saying "It's not necessary to and you wouldn't accomplish anything if you did..." - thunder - Not exactly true. That plastic strip also happens to be the nail line, at least in three tabs. Some manufacturers think it provides a little extra nail holding capability. - Nehmo - The plastic strip is flimsy, and it's on the bottom of the shingle. -- ********************* * Nehmo Sergheyev * ********************* |
#8
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thunder wrote in message ...
On Mon, 22 Nov 2004 03:30:27 +0000, Nehmo Sergheyev wrote: - Cliff Hartle - On allot of shingles "DO NOT REMOVE" is printed on the strip. For some reason they don't want the bottom of the shingle sticking to the tar paper. - Nehmo - It wouldn't hurt anything if a shingle stuck to the underlayment . It's already nailed or stapled to it. The "DO NOT..." is just a simple way of saying "It's not necessary to and you wouldn't accomplish anything if you did..." Not exactly true. That plastic strip also happens to be the nail line, at least in three tabs. Some manufacturers think it provides a little extra nail holding capability. Have a cite for that? How would it add any holding capability as the holding capability is in the wood deck, not the shingle. That thin strip will also not add anything to keep the nail from pulling through the shingle. Harry K |
#9
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- Joe -
But getting back to the IKO answer above - it doesn't explain what these strips are covering up. Their logic is that the tape is there to keep the shingles from sticking to each other. Which means that what-ever is UNDER the tape is sticky and shouldn't come into contact with other shingles while bundled. So why put this stuff on the shingles in the first place? - Nehmo - Picture the shingle correctly oriented with the granular surface up. What's UNDER the tape on the bottom of the shingle is the next shingle. While in a package, the tape is above the adhesive spots of the next shingle. While installed on the roof, the tape is above a part of the next shingle where there is no adhesive because each shingle is offset from the next shingle. Thus, the tape serves a function while the shingle is in a package, but serves no function after the shingle is installed. The *other* adhesive on the bottom of a shingle that holds the tape on only does that. -- ********************* * Nehmo Sergheyev * ********************* |
#10
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On one of the IKO web pages there is a description on how shingles are made.
From what I understand, the plastic is applied to the back of each shingle so that it does not stick to the machine that is making them. Therefore, I conclude that the shingles are probably being propelled between two rollers, one on top and bottom. The one on top applies the tar to the shingle, but as the shingle moves off the rollers the tar from the top roller can get on the bottom one. This causes tar to get on the bottom of the shingle and the plastic is applied to prevent the tar from getting on the other parts of the machine and stops the shingles from sticking. Seems reasonable to me anyway. Cheers, R "Nehmo Sergheyev" wrote in message news - Joe - But getting back to the IKO answer above - it doesn't explain what these strips are covering up. Their logic is that the tape is there to keep the shingles from sticking to each other. Which means that what-ever is UNDER the tape is sticky and shouldn't come into contact with other shingles while bundled. So why put this stuff on the shingles in the first place? - Nehmo - Picture the shingle correctly oriented with the granular surface up. What's UNDER the tape on the bottom of the shingle is the next shingle. While in a package, the tape is above the adhesive spots of the next shingle. While installed on the roof, the tape is above a part of the next shingle where there is no adhesive because each shingle is offset from the next shingle. Thus, the tape serves a function while the shingle is in a package, but serves no function after the shingle is installed. The *other* adhesive on the bottom of a shingle that holds the tape on only does that. -- ********************* * Nehmo Sergheyev * ********************* |
#11
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- R&D -
On one of the IKO web pages there is a description on how shingles are made. - Nehmo - Please link. -- ********************* * Nehmo Sergheyev * ********************* |
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