For additional stability you can also use steel joists that are built into one or both of the walls.
How to build a flat deck roof.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Many porches use 22 diameter corner and intermediate.
The joists of the deck as with most flooring will be set out on 16 inch centers.
Hi thanks for the interesting blog.
The thing is that the roof draining is through a hole in the center of the roof.
As a result most decks have inadequate footings to support a new porch roof.
No matter the reason the keys to a long lasting deck above a living space are the same.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Typical decks are designed to support 55 psf lbs per square foot.
Frame up a box the size of the outer dimensions of your deck using 2.
This will provide the surface for you to attach the decking.
The footings for porch decks must be larger than deck footings.
I am also planning to make a deck on my flat roof but i have some questions.
Step 2 order materials.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
That means there are 4 slopes leading the rain or melted snow water to the drain.
Step 3 prepare the materials.
They are merely placed on top of another structure.
The standing water eventually seeped through and rotted the frame.
There are tons of reasons to build a deck over a roof from creating a romantic outdoor breakfast nook off a second floor master bedroom to providing a second floor porch on a city house.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface.
To simplify a construction.
How to build a roof over a deck step 1.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
So i will not be able to put the sleepers parallel to the slope.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
Lift the box.
Step 5 add handrails.
Build the frame of the roof on the ground.
May 7 2014 before we look at how to build a deck on a flat roof here s an example of what not to do as debris settled into the cracks of the gravel roof it became a muddy sponge and the sleepers became dams with big rains.
Step 1 simplify the project.
A reliable roof membrane and details that minimize any damage to the.
