Flat Roof Parapet Capping Details

Parapets dramatically reduce these pressure differences at roof edges figure 3.

Flat roof parapet capping details. Minimum of 12 to top of parapet. 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. Applications include parapet walls where water needs to be directed towards a balcony or flat roof for drainage purposes. The lower edge of the parapet cover is joined to the upper edge of the copper roof with a transverse seam.

We also manufacture radius parapet wall caps and can match any profile. Venting in wood framed parapets. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. 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.

Table of contents 1. 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. Height of roofing at wall.

Parapet wall caps are custom fabricated to any measurements and it usually measure 10 in length but can also be bent in 12 lengths. Flat roof detail masonry cavity wall flat roof insulation above and between joists. Timber frame flat roof detail. Top of parapet below cap to be sealed with fluid applied flashing.

This style offers the designer the greatest number of dimensional options and the greatest number of corner units both internal and external. This is a nice detail because it keeps a crisp clean edge profile at the top of the parapet wall. Timber frame flat roof detail. Provide venting to each wall cavity.

If cavity is. Do not lap tpo over top of parapet unless required by. This cover in turn laps over base flashing which is cleated to the roof deck or a nailing strip. 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.