Green Roof Drainage Options

Grs drainage products typically fit into a green roof system above grs root barrier and below grs filter fabric.

Green roof drainage options.

Zurn offers a variety of roof drain solutions suited for modular green roofs such as the z163 and the 84 options both shown below. Trees on green roofs. Ponding water on flat roofs reduces the roof s lifespan. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely.

Sloped roofs are naturally better at preventing pooling due to the design of their structure. However the water coming off. The greenslope roof ponding repair kit provides a lightweight inexpensive solution to flat roof ponding. Roof drainage options for sloped residential roof.

The drainage layer has an important role to play in the total system structure of a green roof. Depending on regional precipitation rates and the water retention goals for your specific project green roof solutions has a full range of products to meet your needs. The green roof solutions drainage conduit is a stainless steel channel for use with the aggredrain system. The drainage also contributes to good aeration of the plant roots.

There are several drainage options to repair pooling or ponding water on flat roofs including internal drains gutters and downspouts scuppers and roof leveling compounds. During a dry period the water stored can be reabsorbed by the vegetation layer above. If stone ballast is being utilized around the drain the 84 option shown above. It buffers water and allows excess water to drain away.