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Can ceiling joists be hung directly from roof rafters?

By Scythen
Created 01/01/2013 - 10:50

The problem is that the

by DanH in reply to Scythen [1] [original] [2] on Tue, 01/01/2013 - 13:58

The problem is that the current ceiling joists are preventing the rafters from "doing the splits" and spreading apart. 

As a general rule, you can raise a conventional ceiling joist up about 1/3rd of the way to the peak and still (if it's well-fastened) have it prevent "rafter spread".  But of course, general rules often have specific exceptions, and rafter spread can cause nasty damage to the entire structure.


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Links:
[1] http://forums.finehomebuilding.com/members/scythen
[2] http://forums.finehomebuilding.com/breaktime/construction-techniques/can-ceiling-joists-be-hung-directly-roof-rafters