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Old 09-10-2011, 08:22 AM   #1
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Hip Rafter Big Mistake - Easy Fix?


I am building a 12x12 shed with a 6/12 hip roof. My problem is I somehow managed to cut the birdsmouth on the hip rafters too deep. I have already hung most of the creepers that hang from the hip rafters. I am wondering if it is possible to "lift" the hip rafters at the corners without causing other problems.
The hip rafters are 2x8, the common and creeper rafters are 2x6.

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Old 09-10-2011, 09:58 AM   #2
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Hip Rafter Big Mistake - Easy Fix?


As long as you have solid support between the seat cut and the top plate and don’t care what it looks like you can.

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Old 09-10-2011, 10:35 AM   #3
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Hip Rafter Big Mistake - Easy Fix?


Do you have a picture to post?
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Old 09-10-2011, 10:39 AM   #4
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Hip Rafter Big Mistake - Easy Fix?


If you already have your commons and hip jacks nailed in place, raising the entire skeleton will open the plumb cut of the rafters. If the heel of the bird mouths aren't pulled tight to the outside of the top plate you may be OK as lifting the skeleton will pull them tight.

Did you cut the rafters measuring from ridge to top plate or did you figure your rafters and cut them? Are your ceiling joists in place? You may have to cut it all loose and shim up the hips and go from there.
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Old 09-10-2011, 01:25 PM   #5
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Hip Rafter Big Mistake - Easy Fix?


I appreciate the responses! I am quite well secured and it will not be noticeable except when I look up from the inside so I am considering shimming as an option to cutting everything out and lifting the rafters. I am only 1/2" low.

I have plans that called for specific measured rafters which I followed to the letter but I didn't think to consider the left over height of the 2x8 hips after the birdsmouth cut. Lifting them now will pull/spread the very tight angles at the top of the roof, which I feel is way more important in terms of stability.

If I am wrong on the stability issue I have time to do any other adjusting but am not willing to cut everything out and start over though I know that is the correct thing to do.

Thanks again for those who have responded. I will post a picture later today.
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Old 09-10-2011, 01:57 PM   #6
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Hip Rafter Big Mistake - Easy Fix?


Quote:
Originally Posted by notapro4sure View Post
I appreciate the responses! I am quite well secured and it will not be noticeable except when I look up from the inside so I am considering shimming as an option to cutting everything out and lifting the rafters. I am only 1/2" low.
Just stick a piece of 1/2" plywood underneath.

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