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blocked diaphragm

blocked diaphragm

blocked diaphragm

What other ways are there to satisfy the blocked diaphragm requirements other than framing?  For example, can tongue and groove plywood or these "clips" be used to get the higher capacities of blocked diaphragms without all the expense of additional framing members?  Everytime I put a blocked diaphragm requiredment on my drawings, I catch h.... from the contractor.

RE: blocked diaphragm

You can use staples on tongue and groove diaphragms but they have to be at least 1 1/8" thick sheets to use them. The staples will allow you not to have to put the add'l block members below the sheets. I would do some research on these staples, they may not perform so well in seismic areas. It has been recommended to me to put the sheets at 45 degree angles as well to get more strength.

Contact the APA and they will give you the best advice on this matter.


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