Flat Roof Scupper Drain Detail

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.

Flat roof scupper drain detail.

On the roof side overflow scuppers can be detailed similar to detail 10 5d. Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems. The scupper is locked and soldered to the closure flange on all sides. Download free high quality cad drawings blocks and details of roof drains organized by masterformat.

There are three types of drain systems commonly used on flat roofs. Most residential roofs are sloped to the edge and a gutter system catches the water. It is best practice not to place drains near skylights. Smith carefully designs and manufactures a full line of roof drains deck drains scupper drains promenade and parking area drains and more to satisfy both the artistic eye of the architect and the calculating mind of the engineer.

Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally. When a scupper is connected with a down pipe the chances are it will freeze during winter and not drain any water. Using this method permits adding a drain at the roof s low point. The detail shows an alternate method of constructing either type of scupper.

The best draining system for a flat roof. There are some residential roofs that are built like commercial roofs and more likely have an inner drain system. 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. A canale roof scupper is a spout drain installed in the parapet of a flat roof building to drain rainwater.

This is a small flat roof with a wide mouth scupper. The top of the roof side flange is extended into a masonry joint. Scuppers are roof drains on the edge of the roof. Adding drains for ponding roofs it is possible to add new roof drains to relieve ponding on a sagged flat roof as shown at left.

There are roof coating products available if there isn t enough slant or slope to accomplish this. 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. If water ponds on a flat roof it could lead to problems later on.