Green Roof Drainage Options

However the water coming off.

Green roof drainage options.

Ponding water on flat roofs reduces the roof s lifespan. It buffers water and allows excess water to drain away. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. Roof drainage options for sloped residential roof.

The sloped roof allows water to run off without having to modify the roof. If stone ballast is being utilized around the drain the 84 option shown above. 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. 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 drainage layer has an important role to play in the total system structure of a green roof. Sloped roofs are naturally better at preventing pooling due to the design of their structure. 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 greenslope roof ponding repair kit provides a lightweight inexpensive solution to flat roof ponding.

Grs drainage products typically fit into a green roof system above grs root barrier and below grs filter fabric. The roof might damage the foundation of the building. Trees on green roofs. The drainage also contributes to good aeration of the plant roots.