Building Roof Deck Plan

There are three types of roofs that you ll find over a deck.

Building roof deck plan.

Shed roof a single sloping surface that starts at the exterior house wall and ends at support posts. How to build a roof over a deck step 1. Porch decks require 25 additional psf for roof loads for a total of 80 psf. Frame up a box the size of the outer dimensions of your deck using 2.

Gable roof the most common type of deck roof the gable roof forms a triangular shape. Lift the box. Make sure the frame has the appropriate blocking to ensure a solid connection. Shed gable and hip.

Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber. Do not attach the post base to only decking. Many porches use 22 diameter corner and intermediate footings. Build the frame of the roof on the ground.

Typical decks are designed to support 55 psf lbs per square foot. Building a shed roof over a deck.