How To Build A Flat Roof For A Deck

Sizes of joists needed for flat roof construction.

How to build a flat roof for a deck.

Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface. Step 2 order materials. You will need to attach the porch rafters to the house roof rafters and replace the roofing and flashing. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

One of the greatest advantages of choosing a flat roofing. A gable roof also blends in well with many types of. The best way is to construct a. This will give additional stability to the roof structure.

Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber. Step 4 assemble the deck. Step 5 add handrails. For additional stability you can also use steel joists that are built into one or both of the walls.

One issue that many people question me about is how to create a deck that is functional without compromising the waterproof roof surface. 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. How to build a deck on a flat roof.

Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber. Step 3 prepare the materials. Next you will need to install a watertight epmd rubber membrane over the top of the roof deck for protection against water infiltration in place of roofing materials. To simplify a construction.

The most common type of deck roof the gable roof forms a triangular shape projects along a ridge down the center of the deck and overhangs the enclosed space. This significantly sloped deck roof allows for proper drainage of rain and snow as opposed to a flat roof. So any timber joists that are used need to be strong enough to support this weight. The joists of the deck as with most flooring will be set out on 16 inch centers.

Flat roofs with easy access are great for creating an outdoor living space. If you are tying the shed roof into an existing roof on the house you will need to remove the shingles and sheathing to expose the roof framing. Old asbestos roofs are often replaced with flat roofs. How to build a roof over a deck.

Step 1 simplify the project. The standing water eventually seeped through and rotted the frame.