Treatment Of Deck Drains In Green Roof

Multiplying the depth of the green roof media either 3 or 4 inches per green roof mdc 2 by the paw.

Treatment of deck drains in green roof.

Utilize two stage drains for plaza decks. For flat or nearly flat roofs primary drains are located at the lowest point of the roof. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. 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.

Plaza decks and green roofsplaza decks and green roofs january 16 2009 crca 26th annual trade show speaker. For example a 3 inch deep layer of green roof media with 40 percent paw treats the. Our flexible adaptable components can be configured to meet even the most challenging custom green roof specifications. Hydrotech s garden roof assembly allows the design professional to transform virtually any flat or sloped roof into a landscaped environment.

You should place the anchor elements directly above the drainage layer and filter fabric. If stone ballast is being utilized around. Secondary overflow drains are located at a higher point on the roof. While also keeping the stone ballast out.

And because the assembly incorporates hydrotech s. The drainage layer is installed over the waterproofing membrane to remove excess water and prevent saturation of the growing medium. 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. 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.

The green roof solutions drainage conduit is a stainless steel channel for use with the aggredrain system. 84 options both shown below. Flow of water into them is promoted by positive drainage. Green roof drains watts unique designs are engineered to accommodate the fast emerging and often shifting requirements for green roof drainage.

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. A green roof may require a separately plumbed secondary drainage system also known as the overflow relief system. In some cases the drainage layer can be designed to retain water and serve as a reservoir for irrigating plants between rainfalls. Treatment 1 heat island effect roof 1 innovative wastewater technologies 1.