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Re: 1/2 inch gap under bottom chord

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Title: 1/2 inch gap under bottom chord
I don't know about the gap, but it's a common detail to not attach the wall to the truss.  It came about because super-insulating attics resulted in some trusses lifting.  I've seen interior non-bearing walls with a 1.5" gap below the base board, the walls were being lifted by the trusses.  I think its also common practice to leave the ceiling gypboard unattached within 16" or 18" of the wall.  I'll see if I can find a reference to the whole mess.  John Riley

"Chance, Acie" <AChance(--nospam--at)> wrote:

     A plan checker has requested a detail with a 1/2 inch gap between the wood stud interior nonbearing walls and the bottom chord of the wood trusses.  My first thought was to screw a 24 gage metal track to the bottom chords and set the top of the nonbearing wall in it but not attach the two together.  I could also use a couple of angles attached to the top plates but not attached to the bottom chord of the wood truss.  As this is the first time I have been required to do this and I am concerned about the drywall attachment, I was wondering if anyone had run across this and how you detail it. 
Acie P. Chance   S.E.

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