Roof Drainage At Parapet Wall

Wallbarn supplies a pre cast corner fitting for drainage holes on roofs balconies and terraces which is situated between the horizontal deck and the parapet wall or upstand.

Roof drainage at parapet wall.

Introduction to roof scuppers. Through wall parapet roof drain comes in a variety of sizes. Wall or scupper drain open area 50 in2 50 100 in2 100 150 in2 body material cast iron. To use scuppers as a flat roof drainage system the roof must have a parapet or perimeter wall surrounding it.

Large open area of the grate permits unrestricted water flow. It must be adjusted so that the roof slopes gently towards the scuppers to drain away from the structure. According to the international building code a scupper is an opening in a wall or parapet that allows water to drain from a roof. Buildings that incorporate flat roofs with centralized roof drains and internal downspouts are another story.

What is a roof scupper. Most flat roofs aren t exactly level. With a parapet wall it is possible for a roof to retain or pond water should the primary roof drainage system fail. Stainless steel flat parapet drain w galv body 50bsp.

From the edge of a valley. Install a drain at most 50 ft. Limit the number of parapet walls. This new torch on flat roof is leaking because the parapet walls and the coping stones are defective water damage to the ceiling below from the leaking ceil.

In fact a roof is considered to be flat if its slope is no more than 10. Commercial grade quality and fully backed by our industrial warranty. Keep the distance between drains to at most 200 ft. A scupper is almost always part of a peripheral drainage system which is a drainage.

Cast iron as per bs1452 and as 1830 grade t100. Provide adequate flashing for parapets openings walls joints skylights etc. In many cases these buildings have parapet walls that surround the perimeter of the roof. From a roof edge.

Install a drain at most 50 ft. Large grating provides ample drainage and is slotted to prevent entrance of debris. Roof drainage component manufacturers. See the cad images here they can be fitted to vertical downpipes at the edge of the retaining wall or on a horizontal plane through the upstand or wall to then connect to.