The existing slab can vary considerably throwing off crucial measurements.
A frame deck roof plans.
The footings for porch decks must be larger than deck footings.
Building a shed roof over a deck.
Any use of any plan on this website is at your own risk.
These deck plans plan are not considered valid unless approved by your local building inspector or structural engineer.
As a result most decks have inadequate footings to support a new porch roof.
Typical decks are designed to support 55 psf lbs per square foot.
If you choose to add a roof to an existing deck you may need to add additional supports so it can hold the weight of the roof.
Many porches use 22 diameter corner and intermediate.
When you are building a patio cover off of an existing roof or wall you must take all of your measurements from the point at which the patio roof will attach to the existing structure not the outside of the slab.
Consumer and builder accept all responsibility and liability for all aspects of the use of any plan found on this website.
Patio cover plans building.
With a width of 12 and a pitch of 4 12 that meant the ridge would have to be 2 higher than the eaves of the garage.
Half the 12 deck width is 6 which means a 2 rise.
Adding a roof to your deck is best done as the deck is being built.
Consider including an ice and water barrier too.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.