Flat Roof Parapet Gutter Detail

Courtesy of max baker and the national research council of canada.

Flat roof parapet gutter detail.

Details and technical drawings of the flat roof drainage as downloads in the practical pdf dxf and dwg formats. This is a potentially very dangerous situation. If this parapet is much higher than the drain and the drain gets clogged water will build up on the roof like a swimming pool. The first example below shows a hybrid of traditional flat roofs.

The parapet itself is standard wood framing with an applied siding in. On a flat roof there is usually a small wall called a parapet at the edge of the roof. The main roof beyond has a coping cap flashing piece over the parapet wall. Modern flat roofs with parapet walls.

Alwitra flat roof details. Timber frame flat roof detail. The cantilevered roof overhangs have a gravel stop metal flashing piece at the roof edge concealing the slope. Flat roof detail masonry cavity wall flat roof insulation above and between joists.

Timber frame flat roof detail. Gutters can also be installed to work in tandem with a scupper system. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. It is used at a single ply roof membrane sloped per foot to a gutter like on the bainbridge residence that we designed and built above.

At the highest point of the sloped roof the parapet is about 10 tall at the lowest point the parapet is about 14 tall. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. In reality a flat roof isn t fully level and flat roofs built for gutters should direct water to one or more sides where the gutters are installed. At this point its time to discuss the overflow required by code.