Flat Roof Scupper Drain Detail

The best draining system for a flat roof.

Flat roof scupper drain detail.

On the roof side overflow scuppers can be detailed similar to detail 10 5d. Notice that the new drain extends through the shortest possible route to the building exterior where it is conducted to ground or to a storm drain. There are roof coating products available if there isn t enough slant or slope to accomplish this. Paraguard roof drain with paraflex 531 liquid flashing.

Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally. Unlike most industry standard roof canales made of wood and sheet metal which deteriorate rapidly in a few short years our fiberspan concrete canales roof scuppers endure the most extreme of weather conditions for many years. Using this method permits adding a drain at the roof s low point. There are three types of drain systems commonly used on flat roofs.

Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems. A scupper is almost always part of a peripheral drainage system which is a drainage system in which the water drains off the sides of the roof instead of through the roof itself using drains an internal drainage system. Field fabricated wall expansion joint curb type detail. Scuppers are roof drains on the edge of the roof.

Drain with inter ply parapro flashing. Hold your cursor over the file name to view when a drawing was last updated. The detail shows an alternate method of constructing either type of scupper. Cover strip end lap treatment.

Field fabricated wall expansion joint flat type detail. Download free high quality cad drawings blocks and details of roof drains organized by masterformat. The scupper is locked and soldered to the closure flange on all sides. A canale roof scupper is a spout drain installed in the parapet of a flat roof building to drain rainwater.

Each of these systems has its own pros and cons. This is a small flat roof with a wide mouth scupper. When a scupper is connected with a down pipe the chances are it will freeze during winter and not drain any water. The top of the roof side flange is extended into a masonry joint.