Typical decks are designed to support 55 psf lbs per square foot.
Put roof on an exiting deck.
Without proper planning adding a roof to an existing deck can create an unsafe situation.
Take a look at our step by step guide for building a shed roof over your existing deck.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
Install post base connectors.
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A regular deck can support a certain amount of weight per square foot but a deck roof adds a lot of weight and requires support.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
In most cases larger footings and sometimes more footings are required for a roofed deck.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
These are used to attach the support posts to the frame of the.
Existing deck is 24 w x 10 deep ledgered to house rear beam is 8 back so there s a 24 cantilever.
Building on an existing deck where local building codes allow this practice you can bolt a patio overhead s posts directly to existing deck beams joists or other heavy structural members.
Or you can lag screw through post bases and decking into the top of a deck joist or beam.