Roof Drain Leader Pipe

The water is directed away from the building s foundation to protect the foundations from water damage.

Roof drain leader pipe.

A downspout waterspout downpipe drain spout roof drain pipe leader is a pipe for carrying rainwater from a rain gutter. 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. 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.

The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout. This reveals that the minimum size for the leader pipe is 5. Featuring durable plastic construction this extension can be buried bent or connected to additional sections. Downspouts are most commonly seen attached to the corners of home or building.

Roof drains zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax. This flexible downspout extension easily bends and holds its shape and can be extended from 25 55 in. Downspouts are drainage pipes that direct rain water from the roof to the ground. The water is directed away from the building s foundation to protect the foundations from water damage.

Section 101 5 of the ipc tells us not to reduce the pipe size in the direction of flow. Sizing a roof water drain. 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. Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage.

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. But this isn t the whole story.