Bearing trusses on GYP Board
Bearing trusses on GYP Board
(OP)
Architect i am working with has to have a continuous rated partition and I have wood trusses that need to bear partway up the wall. He is suggesting using 2x6 studs then switching to 2x4 studs creating a shelf for the trusses. But, he wants to wrap the gyp board over the plate so my trusses will bear on gyp board over a 2x plate. Will this work?






RE: Bearing trusses on GYP Board
RE: Bearing trusses on GYP Board
You will need the gypsum association design binder. i think it is available entirely on PDF now.
RE: Bearing trusses on GYP Board
RE: Bearing trusses on GYP Board
Although they will never admit it, Architects hire us to keep them out of trouble. They just need to listen.
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Bearing trusses on GYP Board
RE: Bearing trusses on GYP Board
RE: Bearing trusses on GYP Board
Instead of agonising over it, you need to tell the architect that it can't be done that way.
It's his problem, not yours. Why spend time trying to solve it for him?
RE: Bearing trusses on GYP Board
RE: Bearing trusses on GYP Board
To do this, we used larger diameter lag screws designed to resist the bending stresses resulting from the effective gap between the wall studs and the ledger. If I remember correctly, we also replaced the 2x studs with 3x or 4x members better suited to receive the lag bolts.
Don't get me wrong, this detail made my stomach turn as well. It worked by the numbers, however, and was the best option that we could come up with. The condition that I faced only extended a short distance where a stair shaft abutted a corridor wall. If your condition runs for a long stretch, my detail may be prohibitively costly.