What Could Cause This Roof To Buckle Like This? - Construction - Contractor Talk

What Could Cause This Roof To Buckle Like This?

 
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Old 05-06-2014, 12:26 AM   #1
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What Could Cause This Roof To Buckle Like This?


Friend of mine emailed this photo over and asked if I could come take a look tomorrow.

Said he paid a concrete contractor to pour a new driveway/ carport. He lifted the roof to do his thing and when he let it back down and anchored it- this resulted.


What could cause this roof to buckle like this?-image-2671328073.jpg


Sketchy now on details as the contracts claims no liability for this issue.

Roof was obviously not done professionally...
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Old 05-06-2014, 12:40 AM   #2
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by kambrooks View Post
Friend of mine emailed this photo over and asked if I could come take a look tomorrow.

Said he paid a concrete contractor to pour a new driveway/ carport. He lifted the roof to do his thing and when he let it back down and anchored it- this resulted.


Attachment 112030


Sketchy now on details as the contracts claims no liability for this issue.

Roof was obviously not done professionally...
Could be a number of things. We'd all be just grabbing at straws. Take pics and get back with us.

Sent from my SGH-I337M using Tapatalk

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Old 05-06-2014, 12:43 AM   #3
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Re: What Could Cause This Roof To Buckle Like This?


Attic shot would be helpful
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Old 05-06-2014, 12:53 AM   #4
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Re: What Could Cause This Roof To Buckle Like This?


My first guess would be this:"He lifted the roof to do his thing and when he let it back down and anchored it- this resulted."
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Old 05-06-2014, 05:02 AM   #5
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Re: What Could Cause This Roof To Buckle Like This?


Tell him to jump on it and it should go back down or use that blacktop tamper, just be careful not to f'up rood shingles... worth a try before he has to tear the roof off and fix it the right way
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Old 05-06-2014, 06:51 AM   #6
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by Jaws
Attic shot would be helpful
I'm headed over to look at it now. I'll try to get some more photos.
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Old 05-06-2014, 07:53 AM   #7
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Re: What Could Cause This Roof To Buckle Like This?


The question comes up as to why would it be necessary to 'lift a roof' to pour a concrete pad?

Did they strip it and then lift the framing or somehow disconnect it from the walls, lift and reset with the shingles in place?
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Old 05-06-2014, 08:05 AM   #8
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by Rio View Post
The question comes up as to why would it be necessary to 'lift a roof' to pour a concrete pad?
He said there was a carport pad poured, so most likely the entire outside support for the carport, plus the roof structure, was lifted at one end. Just a guess, and I think the photo isn't inconsistent with doing this.

I'd put this lift in the "stupid contractor tricks" category.
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Old 05-06-2014, 08:44 AM   #9
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by hdavis
He said there was a carport pad poured, so most likely the entire outside support for the carport, plus the roof structure, was lifted at one end. Just a guess, and I think the photo isn't inconsistent with doing this. I'd put this lift in the "stupid contractor tricks" category.
Just saw it. No attic access.

Just gonna rip that section out to see if there's any damage. Probably not, then just reshingle.
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Old 05-09-2014, 07:25 PM   #10
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Re: What Could Cause This Roof To Buckle Like This?


Is that house in Levitown? Looking at how the shingles overlap the facia board. We are doing a job now in levitown and I think every other house has shingles way over the facia with no gutters.
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Old 05-09-2014, 07:40 PM   #11
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Re: What Could Cause This Roof To Buckle Like This?


If you look at the facia shingle...., looks like the garage dropped below being on an even plane .....I'm going to go out on a limb and say the sheathing is not attached to the roof joists anymore .....lifting.....



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Old 05-09-2014, 08:54 PM   #12
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Re: What Could Cause This Roof To Buckle Like This?


Looks like a hack attack to me
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Old 05-09-2014, 08:55 PM   #13
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by paul100
Is that house in Levitown? Looking at how the shingles overlap the facia board. We are doing a job now in levitown and I think every other house has shingles way over the facia with no gutters.
Yeah Levittowner
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Old 05-09-2014, 11:22 PM   #14
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by kambrooks View Post
Just saw it. No attic access.

Just gonna rip that section out to see if there's any damage. Probably not, then just reshingle.
Looks like a few of those "lifted rafters" are now higher than the original plane of the roof. It also looks like the ridge is out of whack as well over the carport. Is it stick framed or are there trusses over the carport?

Last edited by Stoneyard; 05-09-2014 at 11:27 PM.
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Old 05-10-2014, 06:34 AM   #15
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Re: What Could Cause This Roof To Buckle Like This?


The section on the right was the section that was lifted?

If the ridge had settled on the far right it could/would have separated slightly from the intersection with the hip.

If it had been settled in such a way for years, the roof was probably installed while it was in the settled condition.

When it was jacked up the ridge was pushed back slightly toward the hip. The shingled buckled as a result.
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Old 05-10-2014, 03:33 PM   #16
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Re: What Could Cause This Roof To Buckle Like This?


Quote:
Originally Posted by kambrooks View Post
Just saw it. No attic access.

Just gonna rip that section out to see if there's any damage. Probably not, then just reshingle.
My guess is there's wood rot under those shingles. How else would the shingles buckle? I'd do some tear off first, see what's going on then give them some options. Did you offer to do it the right way? New roof, new gutters?
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Old 05-10-2014, 11:29 PM   #17
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Re: What Could Cause This Roof To Buckle Like This?


Looks like the old driveway/carport concrete was settled out before he lifted everything and poured. After the pour it brought everything up causing the shingles to wrinkle.
If the concrete was lower the shingles would be stressed/torn not wrinkled.
This looks like the sheathing down to the rafters were affected.

The carport roof must have been really settled out prior.
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Old 05-22-2014, 07:28 PM   #18
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Re: What Could Cause This Roof To Buckle Like This?


my guess is the carport was built in it's 'lowered' state and by lifting the roof it buckled the point where it joins the original structure. It may be as easy as refastening the sheathing to the original structure...or not

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