Roof Drain Leader Pipe

In general increasing leader size will decrease the number of drains required.

Roof drain leader pipe.

This is where the rainwater is lead away from the building s foundation so that no rainwater is able to pool around the building. Downspouts are usually vertical and usually extend down to ground level. The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout. A downspout waterspout downpipe drain spout roof drain pipe leader is a pipe for carrying rainwater from a rain gutter.

The flow rate in storm drain piping shall not exceed that specified in table 1106 2. Downspouts are drainage pipes that direct rain water from the roof to the ground. Featuring durable plastic construction this extension can be buried bent or connected to additional sections. Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage.

Vertical and horizontal storm drain piping shall be sized based on the flow rate through the roof drain. Table 1106 2 storm drain pipe sizing for si. Reference leader size with hourly rainfall rate to determine roof area drained by each leader chart b. Roof drain selection.

Approximate leader drain pipe size. There is generally a bend of 70 degrees at the bottom. 1 inch 25 4 mm 1 foot 304 8 mm 1 gallon per minute 3 785 l m.