Roof Drains For Green Roofs

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Roof drains for green roofs.

1901 green roof planter drain overflow standpipe 15 1 4 diameter drain with standpipe and 5 8 orifice to meter rainwater. Green roof growing medium is composed of mineral aggregates and only a small amount of organic material. Intensive roof specialized green roof drains 1900 green roof main area drain with standpipe 15 1 4 diameter drain with perforated standpipe. During a dry period the water stored can be reabsorbed by the vegetation layer above.

It should also be light weight resistant to decomposition and compression and physically and chemically stable. Planted hardscaped areas. Z110 green roof drain shown with 18 height for intensive green roofing applications. Each vegetation green roof modules contains a complete hierarchy of green roof systems including drainage rain retention filtration growth media and plants.

The drainage also contributes to good aeration of the plant roots. J drain can be used on all your greenroof applications. The gr52 can withstand 0 352 gallons per square foot or 1 4 gallons per panel. However its water storage and drainage capacity is limited so it is primarily used for sloped roofs not suitable for drainage type p or type g.

Goal is to manufacture supply and promote the most efficient high quality green roofing drain components and technology to our community. It buffers water and allows excess water to drain away. The drainage layer has an important role to play in the total system structure of a green roof. Flow of water into them is promoted by positive drainage.

A green roof may require a separately plumbed secondary drainage system also known as the overflow relief system. It should have good consistent drainage and aeration with a structure that enables it to hold water. Intensive extensive greenroofs. For flat or nearly flat roofs primary drains are located at the lowest point of the roof.

Flat sloped roofs. Z110 green roof drains are available with enclosure heights ranging from 5 to 18 or as specified. Why is drainage important. Intensive layered green roof intensive green roofs have a deeper soil depth therefore the roof drain enclosure height is typically 12 or more.

Use in non pedestrian areas of green roof systems. Zurn manufactures a line of green roof drains featuring customizable enclosures to align with the green roof surface. Compared with green roofs systems using drainage plates or granular drainage this system is the fastest to install and creates the thinnest and lightest green roof assembly. The grs gr52 panel size is 24 x 24 x 2 125.