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· Registered
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Discussion Starter · #1 ·
Any advice on how to fix this roof? Just had a new roof put on. Im concerned about the waves and bumps (see picture) and dont know if this is normal or what the roofer can do to fix it.

It was put on in cold weather so that may explain the shingles, but the bigger bumps and dips are concerning. The board by "C" is just to show the dip. "A" is where we extended the roof, but they said it would be flat on the re-roof

Do you think this is an issue?
What caused it?
Should the roofer fix it?
 

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· Naildriver
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24,970 Posts
Seeing this is one of those take your breath away moments. Is this is a recent (within last 2 years) install? Hopefully it hasn't been fully paid for. It all needs to come off and a REAL roofer hired to do the work.
 

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I would contact the shingle manufacturer or local supplie and see if you can send them pictures or better yet have the local rep visit you. They all have local reps who visit suppliers and deal with that stuff. They are the ones who guarantee the product. If they see it, they will decide whether the installation meets their specs.
 

· Naildriver
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24,970 Posts
Larry, that comment is no good.
Well, I gots eyes. If the shingles were placed on old work, that was uneven to begin with, their eyes weren't working. If the substrate was wavy, their eyes should have seen it. Certainly the product is in question, but it appears two different products were used with similar results. It ain't right.
 

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Discussion Starter · #9 ·
Thats a good idea - get an objective third party involved. If they see an issue, can this type of thing typically be fixed with a repair or would the whole roof section need to be redone? Thanks!
 

· retired framer
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72,330 Posts
Thats a good idea - get an objective third party involved. If they see an issue, can this type of thing typically be fixed with a repair or would the whole roof section need to be redone? Thanks!
Any chance you can find a picture before the addition was done.
 

· Registered
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Discussion Starter · #11 ·
Ill see what i can find. I dont think i have that picture and i dont think i can access the trus's through the attic - its in a bad spot. ill see if i can get another picture near "C" though with the 2x4
 

· retired framer
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Ill see what i can find. I dont think i have that picture and i dont think i can access the trus's through the attic - its in a bad spot. ill see if i can get another picture near "C" though with the 2x4
A is it vaulted on both sides, both new and old trusses or?
 

· Property Mgt/Maint
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6,671 Posts
This is all workmanship and installations issues.
A - Looks like they shingled over a furring strip or lapped the sheathing where the addition meets.

B - Looking close at the valley, they laid in another course of shingles running parallel with the valley. In 30 years, I have never seen that done before. Can't imagine that is the MFG's recommendation to install a valley.


C - decking is sagged or worse, cracked rafter causing the dip. Should have been repaired or re-decked prior to shingling.


IMHO, It all comes down to workmanship.
 

· Doing This Way Too Long
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1,192 Posts
All the comments about a poor roofing job are pretty baseless. I see shingles installed the best they could over a very poor framing job. Should they have done it? I would say no but that doesn't mean they are installed incorrectly.

As far as the course parallel with the valley, apparently you haven't had much shingle exposure in those thirty years. We call that a bleeder. I, personally, don't care for the look and don't allow it on our work but it is an "acceptable", lazy, alternative to a california cut valley. Done correctly it does it's job but I just don't like the finished look.

Please point out to the OP the examples in the pictures provided of the poor quality of the actual shingle or the install aside from obvious subpar framing and carpentry. Don't just say they did a horrible job and it needs torn off. I see straight runs with proper exposure and neat straight valleys. Shingles will only amplify the issues of the surface they are installed on and this looks to be the case based on the pictures provided.
 

· Naildriver
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24,970 Posts
@OldNBroken, one question for you. Would YOU allow your crew to install shingles like that? If the substrate is incorrect, you would be negligent in applying shingles to it. If you applied shingles and it turned out like this, would you feel the least bit responsible? It boils down to workmanship or lack thereof. The product may be installed in straight lines, but it is the poorest job I have seen in a long time. Is that enough?
 
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