Parapet Wall Roof Flashing

On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically.

Parapet wall roof flashing.

1 roll out bitumen flashing atop the wall from end to end with the. Water from either of these locations may bypass flashing and enter the backup wall directly. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. A copper receiver holds the counterflashing at its top edge.

This short repair video shows how to tie in a flat roof to a parapet wall with an l flashing using only surecoat roof coating and poly mesh. As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet wall. The examples shown indicate styles commonly used. 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.

At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly. Copper flashing is locked into this edge and extends at least 8 up the wall. We also manufacture radius parapet wall caps and can match any profile. The flashing of the head of a batten seam roof at a wall is shown in this detail.

This detail may be used where wall heights are 24 48 inches above roof surface. Attaching flashing to a parapet wall requires basic sheet metal tools and knowledge of sheet metal or copper soldering. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a.

Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall.