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#1
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securing top edge of a shed roof?
The main portion of my 1950's house has a large shed-style roof (the
top edge is the end of the roof...it doesn't slant back down the other side). I've had a very slowly building leak at the lower corners of the chimney that is evident inside (the ceiling is cathedral style so the drywall is right up against the rafters). I had a guy out today to look at it and he says the drip edge on the top edge was installed incorrectly. Whereas you want the drip edge under the shingles at the bottom, he says on my roof they were also installed under the shingles at the top. That, combined with the shingles not quite covering the drip edge on that top roof edge is allowing water to flow under the shingles. Then the chimney pokes through the felt and that's where the water is coming in. He says everything looks tight and solid around the chimney itself, which is what led him to keep looking. He proposes to install drip edge on top of those shingles and seal it up, thereby keeping the water from coming in. Does this make sense? I did some searching around, but couldn't find anything about the proper way to deal with the top edge of a shed roof. |
#2
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securing top edge of a shed roof?
On Oct 23, 8:08 am, wrote:
The main portion of my 1950's house has a large shed-style roof (the top edge is the end of the roof...it doesn't slant back down the other side). I've had a very slowly building leak at the lower corners of the chimney that is evident inside (the ceiling is cathedral style so the drywall is right up against the rafters). I had a guy out today to look at it and he says the drip edge on the top edge was installed incorrectly. Whereas you want the drip edge under the shingles at the bottom, he says on my roof they were also installed under the shingles at the top. That, combined with the shingles not quite covering the drip edge on that top roof edge is allowing water to flow under the shingles. Then the chimney pokes through the felt and that's where the water is coming in. He says everything looks tight and solid around the chimney itself, which is what led him to keep looking. He proposes to install drip edge on top of those shingles and seal it up, thereby keeping the water from coming in. Does this make sense? I did some searching around, but couldn't find anything about the proper way to deal with the top edge of a shed roof. He is correct in the proper way to install the drip edge. Whether it will stop the leak is another quesstion. Shouldn't be a high dollar item to install the drip edge so you can't lose anything by trying. Harry K |
#3
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securing top edge of a shed roof?
Thanks for the response. This was my feeling as well. He wants $180 for the work, which seems reasonable to me. Hopefully it will take care of the problem. He is correct in the proper way to install the drip edge. Whether it will stop the leak is another quesstion. Shouldn't be a high dollar item to install the drip edge so you can't lose anything by trying. |
#4
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securing top edge of a shed roof?
On Oct 23, 10:50 pm, wrote:
Thanks for the response. This was my feeling as well. He wants $180 for the work, which seems reasonable to me. Hopefully it will take care of the problem. He is correct in the proper way to install the drip edge. Whether it will stop the leak is another quesstion. Shouldn't be a high dollar item to install the drip edge so you can't lose anything by trying. Installing drip edge on the top of shingles? That is new one to me. His fix might work but don't let him tell you it's the proper way to install drip edge, even on the top edge of a shed roof. That statement calls his judgement into question IMO. The shingles should be on top of the drip edge, and they should overhang it. Your problem sounds like the shingles were cut back too far. There is nothing wrong with his idea of putting the drip edge on top, but don't try to tell me that his way is correct. More like a band aid until it's time for a new roof. His idea might work, but he could also be wrong about the chimney flashing. Even if it looks sound, it could be flashed incorrectly. For 180 bucks, try his idea, but keep your eye on those leaks too. |
#5
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securing top edge of a shed roof?
sounds like the shingles were cut back too far. There is nothing wrong with his idea of putting the drip edge on top, but don't try to tell me that his way is correct. More like a band aid until it's time for a new roof. Thanks for the feedback. The roof is only ten years old, so I hope to get a lot of life out of it yet. If it doesn't work, I'm sure I'll be back asking more questions. |
#6
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securing top edge of a shed roof?
On Oct 24, 4:28 am, marson wrote:
On Oct 23, 10:50 pm, wrote: Thanks for the response. This was my feeling as well. He wants $180 for the work, which seems reasonable to me. Hopefully it will take care of the problem. He is correct in the proper way to install the drip edge. Whether it will stop the leak is another quesstion. Shouldn't be a high dollar item to install the drip edge so you can't lose anything by trying. Installing drip edge on the top of shingles? That is new one to me. His fix might work but don't let him tell you it's the proper way to install drip edge, even on the top edge of a shed roof. That statement calls his judgement into question IMO. The shingles should be on top of the drip edge, and they should overhang it. Your problem sounds like the shingles were cut back too far. There is nothing wrong with his idea of putting the drip edge on top, but don't try to tell me that his way is correct. More like a band aid until it's time for a new roof. His idea might work, but he could also be wrong about the chimney flashing. Even if it looks sound, it could be flashed incorrectly. For 180 bucks, try his idea, but keep your eye on those leaks too. So if you are going to put the drip edge under the shingles at the top, what is to keep the water from running right under the shingles. I agree that it looks like crap but choosing a color that doesn't stick out ameliorates that. So since you think that is the wrong way to install, just how would you do it? Keep in mind that water will want to work in under the shingles even if they are installed with the standard 1/4"-3/8" overhang. There is, of course the "goop the hell out of it with tar while installing" method that may or may not hold for 25-30 years. Harry K |
#7
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securing top edge of a shed roof?
On Oct 25, 10:43 am, Harry K wrote:
On Oct 24, 4:28 am, marson wrote: On Oct 23, 10:50 pm, wrote: Thanks for the response. This was my feeling as well. He wants $180 for the work, which seems reasonable to me. Hopefully it will take care of the problem. He is correct in the proper way to install the drip edge. Whether it will stop the leak is another quesstion. Shouldn't be a high dollar item to install the drip edge so you can't lose anything by trying. Installing drip edge on the top of shingles? That is new one to me. His fix might work but don't let him tell you it's the proper way to install drip edge, even on the top edge of a shed roof. That statement calls his judgement into question IMO. The shingles should be on top of the drip edge, and they should overhang it. Your problem sounds like the shingles were cut back too far. There is nothing wrong with his idea of putting the drip edge on top, but don't try to tell me that his way is correct. More like a band aid until it's time for a new roof. His idea might work, but he could also be wrong about the chimney flashing. Even if it looks sound, it could be flashed incorrectly. For 180 bucks, try his idea, but keep your eye on those leaks too. So if you are going to put the drip edge under the shingles at the top, what is to keep the water from running right under the shingles. I agree that it looks like crap but choosing a color that doesn't stick out ameliorates that. So since you think that is the wrong way to install, just how would you do it? Keep in mind that water will want to work in under the shingles even if they are installed with the standard 1/4"-3/8" overhang. There is, of course the "goop the hell out of it with tar while installing" method that may or may not hold for 25-30 years. Harry K 1/4" overhang is not enough IMO, on any roof. The edge of the shingles will erode over time and eventually the drip edge will be exposed and will rust if it's not aluminum. I've seen this happen. In the case of a shed roof, I would go extra--3/4" or more of shingle overhang. In the heat of summer, they will sag over the drip edge and this is a good thing. Don't know what you mean by water running under the shingles. No drip edge should be exposed. Blackjack should be used to prevent wind driven rain from driving in under the shingles. As long as it is covered and not exposed to UV, it is an effective method. People get into trouble with Blackjack when it is used incorrectly--exposed to sunlight and relied on as a primary leak stopper. Yes it is possible to put the drip edge on top of the shingles. It shouldn't leak. The corners where it ties into the drip edge that is under the shingles will look like hell. |
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