Flat Roof Parapet Capping Details

We also manufacture radius parapet wall caps and can match any profile.

Flat roof parapet capping details.

Height of roofing at wall. Venting in wood framed parapets. 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. Timber frame flat roof detail.

Applications include parapet walls where water needs to be directed towards a balcony or flat roof for drainage purposes. Table of contents 1. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. 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.

Parapets dramatically reduce these pressure differences at roof edges figure 3. Provide venting to each wall cavity. Since the rainscreen system uses a waterproof membrane behind the siding the cap flashing at the parapet wall doesn t need to cover the rainscreen panels at the face. Top of parapet below cap to be sealed with fluid applied flashing.

If cavity is. Flat roof detail masonry cavity wall flat roof insulation above and between joists. 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. This style offers the designer the greatest number of dimensional options and the greatest number of corner units both internal and external.

Parapet wall caps are custom fabricated to any measurements and it usually measure 10 in length but can also be bent in 12 lengths. Minimum of 12 to top of parapet. On the roof side the cover is locked into a standing seam parapet cover. At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly.

This is a nice detail because it keeps a crisp clean edge profile at the top of the parapet wall. The lower edge of the parapet cover is joined to the upper edge of the copper roof with a transverse seam. Timber frame flat roof detail. This cover in turn laps over base flashing which is cleated to the roof deck or a nailing strip.