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.

Roof drain leader pipe. Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage. Roof drains zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax. Buried or underground roof drainage downspout defects clogging overflowing holes corrosion leaks that cause wet basements or crawl areas proper installation of buried downspout extensions proper installation of french drains seepage pits at flat sites gutter downspout defects cause wet basements crawl areas questions answers about installing maintaining repairing buried roof. Downspouts are usually vertical and usually extend down to ground level there is generally a bend of 70 degrees at the bottom.

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. The water is directed away from the building s foundation to protect the foundations from water damage. Sizing a roof water drain.

Downspouts are most commonly seen attached to the corners of home or building. The first step in sizing a roof drain is to calculate the surface area of the roof that the drains will be covering as well as the average hourly rainfall rate at the building location. This reveals that the minimum size for the leader pipe is 5. This flexible downspout extension easily bends and holds its shape and can be extended from 25 55 in.

The water is directed away from the building s foundation to protect the foundations from water damage. But this isn t the whole story. To size the vertical roof drain for the same parameters 5 000 square feet of room area and 6 per hour of rain consult table 1106 2 figure 3. In sizing roof drains and storm drainage piping one half of the area of any vertical wall that diverts rainwater to the roof shall be added to the projected roof area for inclusion in calculating the required size of vertical conductors leaders and horizontal storm drainage piping.

Featuring durable plastic construction this extension can be buried bent or connected to additional sections. A downspout waterspout downpipe drain spout roof drain pipe leader is a pipe for carrying rainwater from a rain gutter.