Roof Flashing Parapet Walls

No membrane under the parapet flashing.

Roof flashing parapet walls.

It is formed between a roof surface and a parapet wall or between two roof surfaces and is available with infold outfold splashback and squashfold edges. This is what we typically get in the real world today. Attaching flashing to a parapet wall requires basic sheet metal tools and knowledge of sheet metal or copper soldering. Copper base flashing which extends at least 8 up the wall.

Continuity of the control layers between roofs and walls is the whole enchilada. At the edge of these roofs parapet walls are commonly found and are vulnerable to leaks if not flashed correctly. The purpose of a flashing is to make the building weather resistant and to prevent water from entering the building by diverting it. According to the international building code the parapet walls on a roof are required to be properly coped with noncombustible weatherproof materials of a width not less than the thickness of the parapet wall.

Stramit roof and wall flashingis generally manufactured from g300 steel with protective coatings of zincalume galvanised or colorbond. Usually supported by heavy gauge straps trough gutters are very efficient and have better self cleaning properties than box gutters. 1 roll out bitumen flashing atop the wall from end to end with the. A half round segmented gutter formed into a trough.

On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. Step 1 flashing 1 is a typical apron roof flashing. Many buildings have flat roofs in certain areas specifically for air condoning units and etc. The flashing upstand is carried up under the cladding and wall underlay and the ridge flashing roofing flashing junction ridge flashing barge flashing stop end required to end of apron flashing 4 2 82 build supplement flashingssection 4 roof wall intersections.

Other materials such as colorbond ultra colorbond stainless uncoated stainless copper and aluminium are also available. The counterflashing laps the base flashing a minimum of 3. Vertical wall flashing this detail shows a flashing condition at a vertical wall or parapet. Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a.

This detail may be used where wall heights are 24 48 inches above roof surface. Parapet wall caps are custom fabricated to any measurements and it usually measure 10 in length but can also be bent in 12 lengths. When i first saw it the lightbulb went off. Flashings and cappings are strips of metal formed to weatherproof the edges of roofing and walling.