Parapet Wall Roof Flashing

At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly.

Parapet wall roof flashing. Attaching flashing to a parapet wall requires basic sheet metal tools and knowledge of sheet metal or copper soldering. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. Water from either of these locations may bypass flashing and enter the backup wall directly. 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.

We also manufacture radius parapet wall caps and can match any profile. As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet wall. Copper flashing is locked into this edge and extends at least 8 up the wall. A copper receiver holds the counterflashing at its top edge.

Many flat and low slope roofs are surrounded by parapet walls. The examples shown indicate styles commonly used. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. Whether you prefer a simple screw through or more complex hidden fastener style we are able to build what you require.

1 roll out bitumen flashing atop the wall from end to end with the. On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall. This detail may be used where wall heights are 24 48 inches above roof surface.

The flashing of the head of a batten seam roof at a wall is shown in this detail.