I visited a job site of one of my builder buds. His wall board subs glued the heck out of the board and used only about 12 screws per 54″ x 20′ sheet. I stepped back, that’s not the way I learned to hang board, but maybe times and experience is changing???
Mick
Edited 6/12/2004 11:52 am ET by Mick
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Some places, yup
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Are there codes to cover installation? Would you just use adhesive?
Miki
I don't know what the codes say, and I would never allow glue only, but there are some advantages to doing both together. The major point is the elimination of a lot of nail pops.
but there are more than plenty of negatives, in my thinking. Where you use a continuous VB on the inside of exterior insulated wall systems, the SR guys want to slit the VB to let the glue stick to the studs. That is a definite no-no, ruining a designed system to make things easier for a single sub.
There should still always be enough fasteners to hold the sheet in plane whiole the glue sets up, something that I doubt too many rock hangers payattention to one they get the idea of saving on screw time.
Third, I don't know if much is counted on in seismic zones and shearwall panels when various methods of rocking are considered, but I would want both screws and glue for such situatons, official testing be damned. I want to build as tight as possible, so I don't view it as an either/or thing
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I hope they didn't try this technique on exterior walls. as anyone who has ever glued down subfloor can attest, the same amount of fasteners are required to take the voids out and flatten out the excess glue. I can see finishing problems with this technique and can't see the structural cost benefit between this and just adding more screws.