Friday, July 20, 2007

Design preference for non-bearing wall connectors

I have a non-bearing metal stud wall that is to be attached to the underside
of a W24. The detail was missed by the SE on the permit set and so I
sketched up a detail of a slip track with shot pins into the bottom flange
to connect the track. The SE revised the detail to self drilling screws,
claiming it was a "better" connection. (I'm not quite sure which element
became "better"), but...nevertheless, it begs this question:

Is there any consensus here about whether either version is a "better" or
"worse" version of this detail? Does the shot pin mess with the flange
integrity in any way that could be considered more deleterious than an S-D
screw? (The exact detail was 6" metal stud x 18' high, GWB both sides. I
guessed 145 shots @ 16"oc, his came back #10 SD screws at 8"oc.).


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