Typical decks are designed to support 55 psf lbs per square foot.
How to add a roof over an existing deck.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
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 deck.
No matter the situation either attaching to an existing deck or building onto a deck that is being built in progress the weight of the roof needs to be considered in relation to the deck.
Install post base connectors.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
Our experts can take care of all this and more.
If the roof is attached to the deck it needs to be able to support the weight.
The best time to build a roof over your deck is during the construction of the deck itself.
For a solid connection you ll have.
If the deck doubles as a porch it needs to be able to support no more than 80 psf.
Decks typically are designed to support 55 pounds per square feet or psf of weight.
Porch decks also require larger footings than deck footings.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.