Discuss the following issues with your professional handyman during the deck roof design process.
How to build a shed roof over an existing deck.
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Typical decks are designed to support 55 psf lbs per square foot.
Install post base connectors.
Do not attach the post base to only decking.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
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.
Pre cut the rafters and support columns with an electric circular saw.
Attach the shed roof to the home s framework with anchor bolts.
Install post base connectors to attach the support posts to the deck frame.
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Purchase 2 by 6 inch pressure treated boards to construct the shed covering.
The best time to build a roof over your deck is during the construction of the deck itself.
Install rafters on 16 inch centers assembling the structure with 4 inch stainless steel screws and an electric screwdriver.
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.
You can build your own shed trusses by using a standard jig.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Instead of working at a table or other raised surface it s best to build the wooden trusses on the ground.