Discuss the following issues with your professional handyman during the deck roof design process.
How to build a shed roof over an existing deck.
Do not attach the post base to only decking.
Instead of working at a table or other raised surface it s best to build the wooden trusses on the ground.
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Typical decks are designed to support 55 psf lbs per square foot.
Attach the shed roof to the home s framework with anchor bolts.
The best time to build a roof over your deck is during the construction of the deck itself.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
Install post base connectors.
You can build your own shed trusses by using a standard jig.
Purchase 2 by 6 inch pressure treated boards to construct the shed covering.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
Building a shed roof over a deck.
Build the trusses as a rule of thumb you will first need to build the walls and floor before you can start to build the shed trusses.
Install rafters on 16 inch centers assembling the structure with 4 inch stainless steel screws and an electric screwdriver.
Make sure the frame has the appropriate blocking to ensure a solid connection.
Install post base connectors to attach the support posts to the deck frame.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Take a look at our step by step guide for building a shed roof over your existing deck.