Open Side Roof Drain

The secondary roof drains can be of two types roof drains with an independent piping system or roof drains that combine with the primary roof drainage piping which will require an increase in piping size.

Open side roof drain.

Appendix b in the ipc provides rates of rainfall for various u s. 1 drain water directly into the side port of the unit from a run of perforated or unperforated drain tubing 2 link two or more dry well units together or 3 use it independently with a top drain for small pooling areas. Size horizontal storm drainage piping. Overflow drains shall be the same size as the roof drains with the inlet flow line two inches above the low point of the roof and shall be installed independent from the roof drains.

Main roof drain medium area office buildings. The secondary roof drainage system can be of two methods roof scuppers open sides of parapet walls or secondary roof drains. 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. Open area 50 in2 50 100 in2 flange size 8 12 15.

Select number of roof drains and calculate the roof area sloped to each drain. When a sunroof drain does become plugged the common signs are either a wet headliner water dripping from the headliner wet roof pillar a damp carpet or water pooling in the foot wells. Scuppers are commonly used on flat roofs that have a parapet or other type of perimeter barrier enclosing the roof. Scuppers are open holes or channels cut into the roof edge or parapet.

By the 1997 edition of the upc section 1101 11 2 had been added that completely prescribed where and how secondary roof drainage was to be provided. Soft wire or trimmer cord. Size vertical storm drainage piping. The drain inlet at the top photos 5 and 8 is optional.

Cities based on inches per hour that may fall during a storm of one hour duration and a 100 year return period. These drains are normally feed through the roof pillars and exit somewhere underneath the vehicle.