Parapet Detail Flat Roof

What types of penetration are typically required in flat roofs.

Parapet detail flat roof.

Exterior wall parapet rafters prep. 100 dan road canton ma 02021 phone 1 800 451 2504 sales 1 800 576 2358. The assembly is straight forward but what complicates matters is that the roof needs to be vented. Minimum of 12 to top of parapet.

When wind blows against a building it produces vortices at the roof edges that create huge pressure differences at roof perimeters that can suck roofs off buildings. Parapets dramatically reduce these pressure differences at roof edges figure 3. Free cad dwg download of a parapet wall to be used in your roof design cad drawings. Nov 30 2014 explore alex radford foster s board parapet detail on pinterest.

Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. A roof is considered to be flat when it is of a slope of 1 5o to the horizontal. To wall sloped roof no overhang ledger support. See more ideas about parapet architecture details construction drawings.

Waterproof membrane to prevent water penetrating the structure and interior of the building. Common penetration details include soil vent pipes hot pipes from boiler flues or log burners electrical cables for air conditioning units extraction ducting and tracks for mechanical window cleaning systems. A parapet is a part of a roof that eliminates the danger of a flat roof while opening up a wealth of opportunities to use roof space safely and effectively. A flat roof usually consists of the following.

At the highest point of the sloped roof the parapet is about 10 tall at the lowest point the parapet is about 14 tall. The parapet itself is standard wood framing with an applied siding in this case t g 1 4 cedar.