Flat Roof Parapet Flashing Detail

Parapet with plywood sheathing and parasolo flashing.

Flat roof parapet flashing detail.

A combination of elements are used in this detail. Cover flashings are also used to seal rooflights upstand kerbs and plant support bases. This cover in turn laps over base flashing which is cleated to the roof deck or a nailing strip. Change of pitch flashing sits on batten roof fixing seal seal ensure that the underlap length is sufficient to prevent wind driven rain from entering.

On the roof side the cover is locked into a standing seam parapet cover. If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4. Outside corner reinforcement universal corner detail. This is a nice detail because it keeps a crisp clean edge profile at the top of the parapet wall.

Since the rainscreen system uses a waterproof membrane behind the siding the cap flashing at the parapet wall doesn t need to cover the rainscreen panels at the face. Typical roofing details autocad files. Parapet wall supported deck with parasolo flashing. Copper flashing is locked into this edge and extends at least 8 up the wall.

Detail drawing pdf pdf 195 kb. 3 3a surface mounted counter flashing detail. The top of the wall is covered by a copper coping cover similar to detail 9 3a. Roof membrane temperatures ottawa canada summer day.

Courtesy of max baker and the national research council of canada. Where this is unavoidable use an overflashing between the penetration and the ridge or parapet for roof sheet drainage design refer to the stramit roof slope design guide. Parapet wall with edge grip. A good example is the metal sleeve used to protect and seal plastic pipe penetrations on hot melt roofs.

The cover flashing is placed over the top of the sleeve and around the pipe extending down to cover top of the waterproofing upstand. High parapet copper roof. Tpo roofing pros and cons. Detail drawing dwg.

Hold your cursor over the file name to view when a drawing was last updated. The detail drawings are grouped by details and can be downloaded below in dwg or pdf format. High wall flashing detail 10 wide sheets. Parapet with coping and parasolo flashing.

High wall flashing detail 5 wide sheets. A copper receiver holds the counterflashing at its top edge. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. Capping or parapet flashing.