How To Build A Deck Over A Flat Roof

Place the deck planks every 6 inches which will leave a small gap between each plank.

How to build a deck over a flat roof.

As you can see the guys are getting a great start on the framework for our new rooftop deck. These decks are often referred to as floating as they are not secured in place as a stand alone structure. Whenever i install decking over a roof i make sure the framing is structurally sound and properly pitched to drain water. The thing is that the roof draining is through a hole in the center.

A properly constructed epdm roof should last 40 or more years. Install the 14 inch pieces as braces throughout the joists with a staggered row extending across the center of the deck. Still leaf debris and organic matter that gets through the slats in the decking will build up on the rubber roof and hold moisture. Nail the planks in place.

Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber. Now there s been quite a trend over the last few years for people to move back to downtown areas. Building a deck over a flat roof is very similar to building a deck over a concrete patio. Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface.

Strips of 4 in wide epdm provide a layer of protection between the sleepers and the roof. Step 5 add handrails. It s best to build the wooden deck in removable sections for cleaning and maintenance of the rubber roof and repair of the membrane if ever needed. I am also planning to make a deck on my flat roof but i have some questions.

If you were concerned about securing the deck you could run strapping over the sleepers and attach to the house. And developers are finding old buildings. Build the frame of the roof on the ground. April 10 2015 12 30 pm hi thanks for the interesting blog.

They are merely placed on top of another structure. This will provide the surface for you to attach the decking. The specific requirements will vary from one location to another. The sleepers aren t fastened in place and the floor floats.

A roof deck is almost certainly going to be required by law to have handrails. Building a deck over a flat roof is very similar to building a deck over a concrete patio.