Green Roof Drainage Layer Material

The most critical role of the drainage layer is to provide an adequate flow of water off the roof during and after a rain event.

Green roof drainage layer material.

On modern lightweight green roofs plastic drainage sheets or boards are the preferred drainage materials. Compared with green roofs systems using drainage plates or granular drainage this system is the fastest to install and creates the thinnest and lightest green roof assembly. Systems with drainage mats. Green roof systems of this type are drained by a multi layer fabric mat called a drainage mat that combines soil separation drainage and protection functions.

Sedum supply have two types of drainage layer 12mm and 20mm. It is made of a filtration veil and the polyamide monofilament fibre network layer. 2016 shows that there were significant differences in energy savings when two identical extensive green roofs with different drainage layer materials one with 4 cm of pozzolana and the other one with 4 cm of recycled rubber crumbs were experimentally evaluated in both cooling and heating periods fig. Green roof solutions offers many different drainage layer options depending on system goals regarding water retention.

Storm water management for sedum and wildflower green roofs. A study conducted by coma et al. Bauder sdf drainage layer material of the drainage layer polyamide monofilament weight of the drainage layer 400 g m. Buy green roof drainage systems from 9 50.

Growing medium is the foundation for your plant growth and depending on the types of plants you want to have on your green roof the depth of the soil. Drainage layers are used to provide a roof drainage system when installing a green roof. Plastic drainage layers may be rigid open mesh structures that allow unrestricted drainage of water or they may have a cup style egg carton design that enables water to be stored at the base of the profile see image below. Protection drainage and filtration.

Grs extenduct 2 includes an additional geocomposite fabric bonded to. The design creates an open and continuous flow path even under high loads. Root barrier the root barrier is the system that avoids the membrane underneath from being pierced and penetrated by roots ensuring that the system can remain. Grs extenduct is a 40 recycled drainage core in a waffle pattern with a geocomposite fabric bonded to the top side.

Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions. The filter fabric top layer prevents clogging from the growing media and the waffle entanglements sit directly on the root barrier.