Parapet Detail Flat Roof

The parapet itself is standard wood framing with an applied siding in this case t g 1 4 cedar.

Parapet detail flat roof.

At the highest point of the sloped roof the parapet is about 10 tall at the lowest point the parapet is about 14 tall. Waterproof membrane to prevent water penetrating the structure and interior of the building. Nov 30 2014 explore alex radford foster s board parapet detail on pinterest. See more ideas about parapet architecture details construction drawings.

Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. 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. Free cad dwg download of a parapet wall to be used in your roof design cad drawings. 100 dan road canton ma 02021 phone 1 800 451 2504 sales 1 800 576 2358.

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 parapet roof is simply put when a building s outermost walls extend upwards past the roof around the edges most often by a few feet. 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. Exterior wall parapet rafters prep.

The assembly is straight forward but what complicates matters is that the roof needs to be vented. A roof is considered to be flat when it is of a slope of 1 5o to the horizontal. Height of roofing at wall. Parapets dramatically reduce these pressure differences at roof edges figure 3.

To address these conditions detailing must provide excellent bulk water management of roofing parapet wall and parapet cap venting to promote drying and careful attention to separating the parapet from interior spaces. Minimum of 12 to top of parapet.