How To Make A Roof Over Deck. To provide for roof decking nail the sheeting pieces of ¾-inch plywood to the trusses. Measure the length using a tape measure and write it down.
Porch decks require 25 additional PSF for roof loads for a total of 80 PSF. If you like the idea of having the roof above your houses roof you need to make sure the support posts are within 4 feet or so of the original gutter on that side. The best time to build a roof over your deck is during the construction of the deck itself.
Before you begin make sure youre matching the house roof pitch angle and overhang for your roof.
Place pier blocks so that the posts will be against the inside of the support frame. Lift the box. These are used to attach the support posts to the frame of the. Use a tape measure to measure from.
