I'm helping a friend go over her builder's list for the lumber order for a new low-slope patio cover at her house 2' OC 3"x6" rafters, plenty of blocking.

Getting roofed with TPO. Builder has put 3/4" CDX T&G ply on the order for decking.

Is this excessive? I've only ever put 1/2" ply down for roof sheathing, but I'm no TPO expert.

Not sure if it's mechanically fastened or glued. We live in the PNW with no crazy wind considerations.

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