The rafters can be attached 16 on center to the ridge beam using rafter ties.
Framing a roof over a deck.
Building a shed roof over a deck.
Hand framing a porch roof involves first setting the ridge beam and the side walls to the proper height that the roof will hang from.
The cost will vary depending on the professionals hired materials used square footage and weather conditions.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Build the frame of the roof on the ground.
While a typical deck is designed to support 55 pounds per square foot psf a roof requires 80 psf of support.
How to build a roof over a deck.
Adding a covered roof to your deck will typically cost between 3 000 10 000.
It increases the square footage of your home with a three season living room.
Check local building code to see if you can attach a patio roof directly to your deck.
Strips of 4 in wide epdm provide a layer of protection between the sleepers and the roof.
Whenever i install decking over a roof i make sure the framing is structurally sound and properly pitched to drain water.
Most porch roofs use 2x6 or 2x8 rafters that form an upside down v across the ridge beam.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
The sleepers aren t fastened in place and the floor floats.
Adding any deck covering or enclosure will typically cost between 1 000 10 000.
Do not attach the post base to only decking.
Building on an existing deck.
Adding a roof to an existing deck installing a roof over an existing deck isn t recommended unless your deck was originally designed to support the roof.
Install post base connectors to attach the support posts to the deck frame.
Blow out the dust fill the hole with epoxy and insert the rod to the required depth.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
Make sure the frame has the appropriate blocking to ensure a solid connection.