But you don't want it in the way of gutter removal, ledger installation, or your new permanent posts, if you don't plan to support it using the house. for temporary posts beams and braces, use 3" screws or longer or scaffold duplex nails, Temporarily sway brace the lower roof beam posts in both directions.
Patio Cover Plans provides information on how to build a patio cover or deck cover. I used two layers of 4' x 8' plywood to deck the roof. The bottom layer was 5/8" thick T 111 4" O.C., and the top layer was 3/8" construction grade CDX plywood. You can usually determine your roof design load from the building code in your area.
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