Moe
Member
Hey, New member here- I am dealing with the local code authority on a 1 hour wall assembly, which the architect has designated as a WP-3242. It is 2 x 6 with RC channel @ 1 side w/ 5/8 GWB over that, fiberglass insulation, other side is 15/32" shear panels nailed with 10d nails, covered by 5/8 GWB. The sticking point is that we were not breaking on the studs, but using the sheathing as a substrate to fasten to. The manufacturer of the board has sent a letter stating the attachment to just the sheathing is sufficient, but the inspector wants to see an assembly that shows the exact attachment that we did, or it all has to come off. Really trying to avoid that if possible. I have tried reason with him, that the pull out properties in the shear panel is approx. 5 times that of the RC on the other side, and the ceilings are in fact double layer into RC.
Has anyone had a similar problem, and is there any documentation to support my position? I know for example, in SIP construction, the sheathing is all there is to screw to, and UL has an assembly that allows 5/8 with joints broke between the studs, and screwed with GYP screw into sound or fiber board- That seems crazy to me, but as an example common sense should say the attachment we have used would be fine. Any help on this would be appreciated
Has anyone had a similar problem, and is there any documentation to support my position? I know for example, in SIP construction, the sheathing is all there is to screw to, and UL has an assembly that allows 5/8 with joints broke between the studs, and screwed with GYP screw into sound or fiber board- That seems crazy to me, but as an example common sense should say the attachment we have used would be fine. Any help on this would be appreciated