Take a look at our step by step guide for building a shed roof over your existing deck.
Put roof on an exiting deck.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
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.
Existing deck is 24 w x 10 deep ledgered to house rear beam is 8 back so there s a 24 cantilever.
Under deck roof the family handyman image result for adding a roof to an existing deck backyard design of a roof addition over an existing concrete patio in adding a roof over an existing deck should you how to build a roof over my existing deck costs designs how to add a roof an existing deck mycoffeepot org.
Typical decks are designed to support 55 psf lbs per square foot.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Install post base connectors.
I don t know if can or should avoid spending on an engineer for this.
Can anyone advise me on a preferred way to put a roof load over an existing deck.
Or you can lag screw through post bases and decking into the top of a deck joist or beam.
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.
Without proper planning adding a roof to an existing deck can create an unsafe situation.