Flat Roof Parapet Coping Details

This cover in turn laps over base flashing which is cleated to the roof deck or a nailing strip.

Flat roof parapet coping details.

The detail shows the method of flashing the head of a standing seam shed roof. High parapet copper roof. The top of the wall is covered by a copper coping cover similar to detail 9 3a. Use frost resistant copings to bs 4729 or other copings to bs 5642.

While a roof parapet wall may seem like a small detail in the grand scheme of the entire building design it can actually change the dynamic of an entire roof both in terms of cosmetic detailing and safety. A combination of elements are used in this detail. Like any roof with batt insulation the venting is an important part of the system. Normally you would find the venting at the soffit the underside.

Copper locking strips of the same weight as the flashing are soldered to the pans between seams at least 6 from the wall and engage the base. Autocad 2000 dwg format our cad drawings are purged to keep the files clean of any unwanted layers. London building act of 1707 banned projected eaves. 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.

In all instances copings must include an adequate overhang and include a drip. On the roof side the cover is locked into a standing seam parapet cover. The standing seams are laid flat 8 from the vertical wall folded 3 4 and secured with copper cleats spaced 12 o c. Brick parapets were required.

Cappings and copings should be capable of being mechanically fixed to the parapet wall. A number of manufacturers produce suitable systems including preformed metal and g r p. Parapet wall design brief history biblical times deuteronomy 22 8 when thou buildest a new house then thou shalt make a battlement for thy roof that thou bring not blood upon thine house if any man fall from thence. Expansion allowances gutter specific expansion tables based on girth profile metal predicted annual δt expansion of building materials table with various expansion coefficients must be used for fascia and copings with consideration of both metal and substrate flat seam roof expansion guidance over 30 feet use batten seam design to allow for expansion.

Download this free cad block of a parapet wall detail in section view.