Parapet Wall Roof Flashing

This detail may be used where wall heights are 24 48 inches above roof surface.

Parapet wall roof flashing.

Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. We also manufacture radius parapet wall caps and can match any profile. Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall.

The examples shown indicate styles commonly used. As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet 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. Attaching flashing to a parapet wall requires basic sheet metal tools and knowledge of sheet metal or copper soldering.

At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. Many flat and low slope roofs are surrounded by parapet walls. 1 roll out bitumen flashing atop the wall from end to end with the.

Whether you prefer a simple screw through or more complex hidden fastener style we are able to build what you require. The flashing of the head of a batten seam roof at a wall is shown in this detail. On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. Utilizing your own custom design we will fabricate a coping flashing to cover and protect your parapet wall design from high grade aluminum or steel sheets.

A copper receiver holds the counterflashing at its top edge.