If local codes allow setting the overhead directly on an existing slab but the concrete is not thick enough to support the overhead s weight you will have to pour new footings around the slab s perimeter or break out sections and pour deeper footings.
Building a roof over an existing deck.
We will walk you through the entire process from siting the patio roof to raising posts attaching beams and installing the roof.
Make sure the frame has the appropriate blocking to ensure a solid connection.
Building a roof over a deck not only provides shade from the blazing sun and shelter from light to heavy rains it can also protect the deck itself from deteriorating under harsh weather conditions.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
Install post base connectors.
Discuss the following issues with your professional handyman during the deck roof design process.
Frame up a box the size of the outer dimensions of your deck using 2.
Your support posts won t need to be.
3 when you have your.
Start here if you want to build a roof over a patio or deck.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Lift the box.
These are used to attach the support posts to the frame of the.
Do not attach the post base to only decking.
Install post base connectors to attach the support posts to the deck frame.
Building on an existing deck.
Build the frame of the roof on the ground.
Building a shed roof over a deck.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
How to build a roof over a deck step 1.
2 fix these support posts to your decks original support frame bolts work well.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
The best time to build a roof over your deck is during the construction of the deck itself.
Take a look at our step by step guide for building a shed roof over your existing deck.