How To Build A Flat Deck Roof

The footings for porch decks must be larger than deck footings.

How to build a flat deck roof. So i will not be able to put the sleepers parallel to the slope. Step 4 assemble the deck. Hi thanks for the interesting blog. First you must make sure the roof is strong enough to support 55 lbs per square foot.

These decks are often referred to as floating as they are not secured in place as a stand alone structure. Building a deck over a flat roof is very similar to building a deck over a concrete patio. Step 2 order materials. 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.

They are merely placed on top of another structure. Many porches use 22 diameter corner and intermediate. This will give additional stability to the roof structure. Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface.

For additional stability you can also use steel joists that are built into one or both of the walls. A reliable roof membrane and details that minimize any damage to the. The joists of the deck as with most flooring will be set out on 16 inch centers. How to build a deck on a flat roof.

Typical decks are designed to support 55 psf lbs per square foot. To simplify a construction. How to build a roof over a deck step 1. No matter the reason the keys to a long lasting deck above a living space are the same.

Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber. The standing water eventually seeped through and rotted the frame. Frame up a box the size of the outer dimensions of your deck using 2. Step 5 add handrails.

Step 1 simplify the project. This will provide the surface for you to attach the decking. 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. I am also planning to make a deck on my flat roof but i have some questions.

As a result most decks have inadequate footings to support a new porch roof. That means there are 4 slopes leading the rain or melted snow water to the drain. The thing is that the roof draining is through a hole in the center of the roof. Porch decks require 25 additional psf for roof loads for a total of 80 psf.

Building a deck over a flat roof is very similar to building a deck over a concrete patio. Lift the box.