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bunkie roof rafters need to tie into ceiling (loft) joists?

bunkie roof rafters need to tie into ceiling (loft) joists?


  #1  
Old 06-23-12, 05:30 AM
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Question bunkie roof rafters need to tie into ceiling (loft) joists?

We have the walls of a bunkie and loft assembled and are about to put on a gable roof. As our kids will be sleeping under this roof we want to make sure it is extra safe. Ironically I did not take a photo of the progress, but below is an image of the model we are working from. I wanted to tie the rafters in at the bottom to the loft joists, but we dropped the loft 8 inches from the top of the top plate so we would have had to extend the joists out from the wall to meet the rafters.
QUESTION - given we want a fairly steep pitch on the roof - 8' span 6' high (6' rise, 4' run = 18 pitch or 56.3 degrees)- would it be fine to just attach the rafters at the top plate with full birdsmouth cuts (sitting full on 2x4 top plate) (ridge board and collar ties are missing in diagram) and be done with it? Or should we tear out the loft and extend the joists so we can attach to rafters near the bottm.

Never made a gable roof before.
thanks.
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  #2  
Old 06-26-12, 06:02 AM
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As far as I know, you can attach the rafters to the top plate but use hurricane tie downs.
 
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Old 06-26-12, 01:42 PM
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How are the joists supported?
 
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Old 06-27-12, 11:31 AM
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The joists are bolted to the studs, about 8 inches down from top of wall - this is to maximize the loft height without having a roof that is ridiculously tall.
 
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Old 06-28-12, 05:27 AM
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Can you sister shorter studs, to the existing studs, under the joists?
 
 

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