Green Roof Roof Drains

Our flexible adaptable components can be configured to meet even the most challenging custom green roof specifications.

Green roof roof drains.

Green roof drains watts unique designs are engineered to accommodate the fast emerging and often shifting requirements for green roof drainage. Intensive layered green roof intensive green roofs have a deeper soil depth therefore the roof drain enclosure height is typically 12 or more. The drainage also contributes to good aeration of the plant roots. It buffers water and allows excess water to drain away.

The drainage off a green roof surface is a particularly important component to maintain optimum growing conditions in the growth medium to managing heavy rainfall without sustaining damage to growth media due to erosion or ponding of water and to ensure the sound engineering and structural integrity of the roof. During a dry period the water stored can be reabsorbed by the vegetation layer above. Zurn manufactures a line of green roof drains featuring customizable enclosures to align with the green roof surface. The design of the different drainage layers allows for a portion of the stormwater to be retained above where the water is allowed to flow freely off of the roof.

Z110 green roof drains are available with enclosure heights ranging from 5 to 18 or as specified. Green roof solutions offers many different drainage layer options depending on system goals regarding water retention. See the full list of features.