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Old 06-25-2012, 09:08 AM   #1
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bunkie gable roof need to tie into ceiling (loft) joists?


Hi
We have the walls of a bunkie (8 x 12) and loft assembled and are about to put on a gable roof. The loft is set 10 inches down from the top of the wall. We want a fairly steep pitch on the roof - 8' span 6' high (6' rise, 4' run = 18 pitch or 56.3 degrees)-

QUESTION - would it be fine to just attach the rafters at the wall top plate with full birdsmouth cuts (sitting full on 2x4 top plate with ridge board and collar ties) and be done with it? Or should we tear out the loft and extend the joists so we can attach to rafters to the loft joists...that is we won't have any ceiling joists for the rafters to attach to...but we could extend the loft joists out from the wall...with a lot of work.

If nobody was sleeping in it I would not even bother asking but...is not tying into the joists considered "safe" construction still?
thanks
mrfitz

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Old 06-25-2012, 09:22 AM   #2
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bunkie gable roof need to tie into ceiling (loft) joists?


Seems like the easiest method is to install a structural ridge beam (12' built up beam) and hang the rafters off of that.

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Old 06-25-2012, 10:32 AM   #3
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bunkie gable roof need to tie into ceiling (loft) joists?


Quote:
Originally Posted by shazapple View Post
Seems like the easiest method is to install a structural ridge beam (12' built up beam) and hang the rafters off of that.
Okay thanks, shazapple...but our next problem is we wanted to install small windows in each gable end to let heat out. How might we support the ridge beam since end wall support would go through where we want the windows. Are JUST rafters from ridge to top plate with collar ties across each pair enough? Or do we have to support the ride beam in the middle and/or on the ends?
thanks
mrfitz

Last edited by mrfitz; 06-25-2012 at 11:55 AM.
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