Floating Flat Roof Deck

Floating or pedestal roof deck assemblies can be an ideal low maintenance deck surface on high traffic areas when properly installed.

Floating flat roof deck.

Building a deck over a flat roof is very similar to building a deck over a concrete patio. When a roof is flat it actually will have a very slight slope water is going to spend a lot more time in one place giving it more time to find a way underneath the roof. Many homes in new england have walk on flat roof decks with living space under them and 90 percent of these deck roofs leak ruining your rooms. Two people can install a brand new deck in a weekend with little or no previous construction experience.

Before beginning however it is important to do two things. When the frame was completed i used an electric hand planer to remove any high spots to ensure that the decking boards would lay uniformly flat. I am taking a 25x25 roof over a garage that was done in decking then tile and leaked. Stains on sheet rock ceilings popping hardwood flooring wet carpets and rotted framing are just some of the damages that you may sustain as a result of these leaks.

The shed itself was built on blocks floating in the same exact manner as the deck. Some key details for a leakproof rooftop deck are. The key is in the word flat. First you must make sure the roof is strong enough to support 55 lbs per square foot.

By paul wa i have an interesting problem. Building a floating deck on an epdm rubber roof surface. The roof deck surface should sloped away from the house a minimum 1 8 inch per foot so the water will. A reliable roofing approved waterproof membrane may be the most essential component to extend the lifetime performance for flat roof deck assemblies designed as floating or pedestal systems.

These decks are often referred to as floating as they are not secured in place as a stand alone structure. Building a deck on a flat roof is neither difficult nor time consuming. I tore everything up replaced the wood that needed it and built up the base and covered everything in epdm. Photo by dave holbrook.

They are merely placed on top of another structure. What s the difference between a regular roof and a flat roof and why does it require different material. Careful detailing of membrane roofs at corners doorways and penetrations is critical for long term performance.