how far should h clips be use on plywood?

puting plywood on a roof in pa please let me know

Answers:
Center of joist span up to 24" divide into thirds above that

Other answers:
I usually put 3 on the short side and 4 on the long side of a sheet of plywood. You can always put more if you want, but it would probably be overkill.
hope this helps you.
I usually put 3 on the short side and 4 on the long side of a sheet of plywood. You can always put more if you want, but it would probably be overkill.
hope this helps you.
i put them on every rafter(16")but every 2ft. should be ok
3x4
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