A green roof may require a separately plumbed secondary drainage system also known as the overflow relief system.
Roof drains for green roofs.
Green roof solutions gr32 and gr52 drainage panels come in 24 x 24 interlocking squares constructed of 100 recycled high density polypropylene hdpp.
The gr52 can withstand 0 352 gallons per square foot or 1 4 gallons per panel.
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Z110 green roof drain shown with 18 height for intensive green roofing applications.
It should have good consistent drainage and aeration with a structure that enables it to hold water.
Secondary overflow drains are located at a higher point on the roof.
Each vegetation green roof modules contains a complete hierarchy of green roof systems including drainage rain retention filtration growth media and plants.
Green roof growing medium is composed of mineral aggregates and only a small amount of organic material.
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.
The drainage also contributes to good aeration of the plant roots.
Goal is to manufacture supply and promote the most efficient high quality green roofing drain components and technology to our community.
Planted hardscaped areas.
J drain can be used on all your greenroof applications.
It should also be light weight resistant to decomposition and compression and physically and chemically stable.
Intensive layered green roof intensive green roofs have a deeper soil depth therefore the roof drain enclosure height is typically 12 or more.
The grs gr52 panel size is 24 x 24 x 2 125.
Flat sloped roofs.
During a dry period the water stored can be reabsorbed by the vegetation layer above.
The drainage layer has an important role to play in the total system structure of a green roof.
Z110 green roof drains are available with enclosure heights ranging from 5 to 18 or as specified.
For flat or nearly flat roofs primary drains are located at the lowest point of the roof.
It buffers water and allows excess water to drain away.
Intensive extensive greenroofs.
Flow of water into them is promoted by positive drainage.
Why is drainage important.
Green roof trays is simple in design easy to install and uses our standard green roof planting method for roof maintenance and repair.
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.
