Deck Over Flat Roof Garage

The value of a roof deck.

Deck over flat roof garage. They are merely placed on top of another structure. First you must make sure the roof is strong enough to support 55 lbs per square foot. It s not really flat. If your garage has a flat roof or if you re planning to build a garage that s next to your home but below the level of the main floor it s entirely possible to build a deck on your garage roof.

Years of neglect and lack of gutter coverage above the deck had destroyed not only the deck but a window and the sidewall as well. Otherwise one idea is to put another piece of material over your roof where you are placing the deck supports to help protect. I ll be reviewing the bison products pedestal and deck tile system on this episode of the build show. Building a deck over a flat roof is very similar to building a deck over a concrete patio.

The garage is over 10 years old so the contractor will be installing a board or required product underneath it to protect it. Depending on the roofing system you put down if you choose a rubber membrane with seams arrange your deck so nothing is covering the seams and weakening them. You can use 2x material laid flat or 4x material also as sleepers. You can do a floating deck and is really your only option.

These decks are often referred to as floating as they are not secured in place as a stand alone structure. However i would highly recommend that you consider a that the epdm is lying flat on the roof subfloor without any sharp objects that can puncture the edpm once sleepers are laid over top and placed under load. What s even better is the fact that building a deck over the roof could save you money as opposed to building one that s separate from the garage. If you already have one of these types of roofs you could potentially cover the existing roof with pvc vinyl decking on top of a flat hard surface but you re much better off taking the roof down and starting over with a high quality vinyl decking material.

When we do install wood decks over the flat roofs we ensure they are floating so that there is no punture or penetration of the rubber membrane. We are primarily installing two ply modified bitumen flat roofing systems. When installed properly as a floating deck a deck can sit on the roofing membrane. A deck atop your garage may well save money compared to a deck build separate from your garage.

This wooden deck was built over her screen porch and on top of a flat roof.