Roof Drains For Green Roofs

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.

Roof drains for green roofs. Secondary overflow drains are located at a higher point on the roof. 1901 green roof planter drain overflow standpipe 15 1 4 diameter drain with standpipe and 5 8 orifice to meter rainwater. During a dry period the water stored can be reabsorbed by the vegetation layer above. Use in non pedestrian areas of green roof systems.

See the full list of features. Why is drainage important. It buffers water and allows excess water to drain away. 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.

Flat sloped roofs. Intensive extensive greenroofs. Z110 green roof drain shown with 18 height for intensive green roofing applications. Z110 green roof drains are available with enclosure heights ranging from 5 to 18 or as specified.

Planted hardscaped areas. For flat or nearly flat roofs primary drains are located at the lowest point of the roof. The grs gr52 panel size is 24 x 24 x 2 125. It should have good consistent drainage and aeration with a structure that enables it to hold water.

Goal is to manufacture supply and promote the most efficient high quality green roofing drain components and technology to our community. The drainage layer has an important role to play in the total system structure of a green roof. J drain can be used on all your greenroof applications. Green roof growing medium is composed of mineral aggregates and only a small amount of organic material.

Intensive layered green roof intensive green roofs have a deeper soil depth therefore the roof drain enclosure height is typically 12 or more. A green roof may require a separately plumbed secondary drainage system also known as the overflow relief system. The gr52 can withstand 0 352 gallons per square foot or 1 4 gallons per panel. Green roof solutions gr32 and gr52 drainage panels come in 24 x 24 interlocking squares constructed of 100 recycled high density polypropylene hdpp.

It should also be light weight resistant to decomposition and compression and physically and chemically stable. Zurn manufactures a line of green roof drains featuring customizable enclosures to align with the green roof surface. 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.