Green Roof Drainage Options

The drainage also contributes to good aeration of the plant roots.

Green roof drainage options.

The drainage layer has an important role to play in the total system structure of a green roof. Drainage and stabilization posted in blog green roof jobsite photos recommendations on june 29 2017 when you include trees on a green roof as an integral part of a high tech building structure you need to consider many details and have a good strategy to ensure your trees thrive over the long term. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. Grs drainage products typically fit into a green roof system above grs root barrier and below grs filter fabric.

Ponding water on flat roofs reduces the roof s lifespan. 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. The sloped roof allows water to run off without having to modify the roof. Sloped roofs are naturally better at preventing pooling due to the design of their structure.

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. Trees on green roofs. During a dry period the water stored can be reabsorbed by the vegetation layer above. The green roof solutions drainage conduit is a stainless steel channel for use with the aggredrain system.

If stone ballast is being utilized around the drain the 84 option shown above. Roof drainage options for sloped residential roof. The roof might damage the foundation of the building. The greenslope roof ponding repair kit provides a lightweight inexpensive solution to flat roof ponding.