Roof Drain System Downspout Drain

Don t mistake as part of the roof drainage system an aluminum downspout that has been used as a cosmetic cover for hvac refrigerant lines as we illustrate in our photo at below left.

Roof drain system downspout drain.

Ads non perforated pipe carries rainwater away from houses and keeps water from seeping down basement walls and creating wet basement problems. More product details close. 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. Sizing a roof water drain.

Example of a primary secondary roof drain assembly courtesy of zurn. This piping can be attached to downspouts storm drain inlet street curb and other disposal areas. Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage. These will drain to the exterior of the building with downspouts and ultimately discharge at grade to sheet flow or to be hard piped to an underground storm system or detention pond.

When the building is re roofed the roofer may install tapered foam insulation to direct water to roof scuppers or to a main or new main roof drain to prevent future ponding. Learn other downspout extender solutions here. Some a c installers use an aluminum downspout to cover the refrigerant and condensate lines that are routed from an attic mounted air handler down to an outdoor ground level compressor. We carry a wide variety of downspout nozzles.

The flexible design easily bends and holds its shape and can be extended from 25 in. Most strainers or domes that cover a drain on flat roofs are poorly designed because they block smaller debris and the strainer becomes clogged preventing any water flow. Using this method permits adding a drain at the roof s low point. If appropriately designed a strainer or leaf filter is supposed to keep larger objects from going down a drain while allowing smaller debris through with the water flow.

Route the water into a storm drain or dry well. Speak with your plumber about installing a sump pump which directs water away from your home to a nearby storm drain. Sketch courtesy of carson dunlop associates. Simply cut your gutter extender at a 45 degree angle and connect it to your downspout with the zip hinge and 8 screws.