Step 2 order materials.
How to build a flat deck roof.
Step 5 add handrails.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Build the frame of the roof on the ground.
This will provide the surface for you to attach the decking.
So i will not be able to put the sleepers parallel to the slope.
As a result most decks have inadequate footings to support a new porch roof.
I am also planning to make a deck on my flat roof but i have some questions.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Many porches use 22 diameter corner and intermediate.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
The joists of the deck as with most flooring will be set out on 16 inch centers.
They are merely placed on top of another structure.
Lift the box.
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.
Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface.
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.
Frame up a box the size of the outer dimensions of your deck using 2.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
The footings for porch decks must be larger than deck footings.
The thing is that the roof draining is through a hole in the center of the roof.
This will give additional stability to the roof structure.
Step 4 assemble the deck.
The standing water eventually seeped through and rotted the frame.
No matter the reason the keys to a long lasting deck above a living space are the same.
Step 3 prepare the materials.
To simplify a construction.
How to build a roof over a deck step 1.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
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.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
Hi thanks for the interesting blog.
Typical decks are designed to support 55 psf lbs per square foot.
For additional stability you can also use steel joists that are built into one or both of the walls.
