Parapet Wall Roof Flashing

As a roof ages the roofing seams begin to separate often beginning where the flat roof meets the parapet wall.

Parapet wall roof flashing.

We also manufacture radius parapet wall caps and can match any profile. On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. The examples shown indicate styles commonly used.

The flashing of the head of a batten seam roof at a wall is shown in this detail. Attaching flashing to a parapet wall requires basic sheet metal tools and knowledge of sheet metal or copper soldering. Many flat and low slope roofs are surrounded by parapet walls. Water from either of these locations may bypass flashing and enter the backup wall directly.

Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall. A copper receiver holds the counterflashing at its top edge. At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly. This detail may be used where wall heights are 24 48 inches above roof surface.

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. 1 roll out bitumen flashing atop the wall from end to end with the. Parapet wall caps are custom fabricated to any measurements and it usually measure 10 in length but can also be bent in 12 lengths. 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.

Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a.