Flat Roof Parapet Flashing Detail

A combination of elements are used in this detail.

Flat roof parapet flashing detail.

On the roof side the cover is locked into a standing seam parapet cover. Parapet with paraguard coping and parasolo flashing. The cover flashing is placed over the top of the sleeve and around the pipe extending down to cover top of the waterproofing upstand. A good example is the metal sleeve used to protect and seal plastic pipe penetrations on hot melt roofs.

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. 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. Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems. The flashing of the head of a batten seam roof at a wall is shown in this detail.

Tpo roofing pros and cons. High parapet copper roof. 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. Copper flashing is locked into this edge and extends at least 8 up the wall.

Parapet wall with edge grip. The detail drawings are grouped by details and can be downloaded below in dwg or pdf format. Detail drawing dwg. A copper receiver holds the counterflashing at its top edge.

Detail drawing pdf pdf 195 kb. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. High wall flashing detail 5 wide sheets. Roof membrane temperatures ottawa canada summer day.

Outside corner reinforcement universal corner detail. High wall flashing detail 10 wide sheets. Parapet with coping and parasolo flashing. This cover in turn laps over base flashing which is cleated to the roof deck or a nailing strip.

This is a nice detail because it keeps a crisp clean edge profile at the top of the parapet wall. Hold your cursor over the file name to view when a drawing was last updated. Capping or parapet flashing. Parapet with plywood sheathing and parasolo flashing.

Courtesy of max baker and the national research council of canada. Cover flashings are also used to seal rooflights upstand kerbs and plant support bases. 3 3a surface mounted counter flashing detail. The top of the wall is covered by a copper coping cover similar to detail 9 3a.