Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Building roof deck plan.
Building a shed roof over a deck.
Install post base connectors to attach the support posts to the deck frame.
Lift the box.
Shed gable and hip.
Make sure the frame has the appropriate blocking to ensure a solid connection.
The footings for porch decks must be larger than deck footings.
There are three types of roofs that you ll find over a deck.
Typical decks are designed to support 55 psf lbs per square foot.
Gable roof the most common type of deck roof the gable roof forms a triangular shape.
How to build a roof over a deck step 1.
Many porches use 22 diameter corner and intermediate footings.
Do not attach the post base to only decking.
As a result most decks have inadequate footings to support a new porch roof.
Build the frame of the roof on the ground.