Treatment Of Deck Drains In Green Roof

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Treatment of deck drains in green roof.

Zurn offers a variety of roof drain solutions suited for modular green roofs such as the z163 and the. Our flexible adaptable components can be configured to meet even the most challenging custom green roof specifications. Because green roof soil systems like rooflite s rooftop trees soil system are built up from the bottom it s easy to bury steel mesh concrete blocks lawn grid pavers or ballast stones to use as anchors for trunk tie downs or root ball strapping. Green roof drains watts unique designs are engineered to accommodate the fast emerging and often shifting requirements for green roof drainage.

Secondary overflow drains are located at a higher point on the roof. The filter layer on a green roof is designed to prevent soil and other substrates as well as debris from filling the cavities of the drainage membrane. 84 options both shown below. Treatment 1 heat island effect roof 1 innovative wastewater technologies 1.

Designed as a lightweight low profile system the garden roof assembly can be safely installed on roof and plaza decks not engineered to handle the heavy load requirements of a traditional green roof. For flat or nearly flat roofs primary drains are located at the lowest point of the roof. And because the assembly incorporates hydrotech s. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely.

Utilize two stage drains for plaza decks. You should place the anchor elements directly above the drainage layer and filter fabric. The green roof solutions drainage conduit is a stainless steel channel for use with the aggredrain system. A green roof may require a separately plumbed secondary drainage system also known as the overflow relief system.

Hydrotech s garden roof assembly allows the design professional to transform virtually any flat or sloped roof into a landscaped environment. Both of our permaseal 20p green roof and permaseal 8 green roof drainage membranes have a build in geotextile filter layer making the installation process that much quicker. The drainage layer is installed over the waterproofing membrane to remove excess water and prevent saturation of the growing medium. The drainage layer is applied over the entire roof area.

For example a 3 inch deep layer of green roof media with 40 percent paw treats the. Multiplying the depth of the green roof media either 3 or 4 inches per green roof mdc 2 by the paw. In some cases the drainage layer can be designed to retain water and serve as a reservoir for irrigating plants between rainfalls. The drain the 84 option shown above will allow for flow through the drain.