Residential Roof And Deck Flat Roof Deck Design

The higher the interior moisture level the thicker the.

Residential roof and deck flat roof deck design. Also you don t have to worry about sleepers and debris building up between the roof deck and the decking and holding water as it drains toward the edge. The roof deck should be properly flashed with a highly durable material that is compatible with the deck material copper lead epdm etc where it adjoins the house. This article discusses rooftop deck construction details to avoid building leaks or rooftop deck safety hazards. The last roof deck i did was over a torch down roof.

What s the difference between a regular roof and a flat roof and why does it require different material. Most roof decks leak because they are typically made of flat roofing materials that were created over a century ago and were not designed for use as roofing for residential homes and living areas. Cut 12 of the shorter 2x6 to measure exactly 11 feet 9 inches. Just don t use anything thinner than 60 mil.

These decks are often referred to as floating as they are not secured in place as a stand alone structure. The roof must be able to support 55 pounds per square foot at a minimum. Before installing a roof deck you must be certain the roof is stable and weatherproofed. Unvented flat roof assembly.

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. The products that come to mind are duradeck and deck king. Condensing surface temperature controlled the thickness of the rigid insulation at both the roof deck and perimeter is determined by a calculation procedure similar to figure 5. To 3 roof and composite floor deck to concrete form deck to long spanning deep deck profiles asc steel deck s extensive product offer meets the needs of the most complex conditions and demands for structural performance and design.

The colder the climate the thicker the rigid insulation required. Building a deck over a flat roof is very similar to building a deck over a concrete patio. Rooftop decks walk on roofs. Place one flush with each end of the deck and nail the end caps to them.

Since most roof decks are floating structures that sit on top of flat roofs it s crucial to weatherproof the roof below the deck to prevent water from seeping into the home. We include walk on roof surfaces roofing membrane to use below a rooftop deck and construction of rooftop deck railings and posts. These are your end caps. Special attention must be paid to railing posts and any other penetrations of the roofing surface.

Set two of the 16 foot boards on each side of the spot where you want to build the deck. First you must make sure the roof is strong enough to support 55 lbs per square foot. The key is in the word flat. Another reason is the original design flaw implemented by architects and or builders who have no experience in flat roofing and do not have appropriate roofing technology to use.

Proper drainage at the edge of the deck must be provided usually with gutters.