In most cases larger footings and sometimes more footings are required for a roofed deck.
Put roof on an exiting deck.
Or you can lag screw through post bases and decking into the top of a deck joist or beam.
Can anyone advise me on a preferred way to put a roof load over an existing deck.
Install post base connectors.
Take a look at our step by step guide for building a shed roof over your existing deck.
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.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
Existing deck is 24 w x 10 deep ledgered to house rear beam is 8 back so there s a 24 cantilever.
2x8 joists 16 oc dbl 2x10 rear beam.
I don t know if can or should avoid spending on an engineer for this.
Without proper planning adding a roof to an existing deck can create an unsafe situation.
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.
Typical decks are designed to support 55 psf lbs per square foot.
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