Green Roof Drainage Layer Thickness

Our permaseal 20p membrane functions as both a drainage layer and as a reservoir see image above.

Green roof drainage layer thickness.

Green roof solutions offers many different drainage layer options depending on system goals regarding water retention. The rock aggregate should also have a. Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions. Older green roofs often used a permeable layer of rock aggregate such as scoria or gravel for drainage.

Manufactured from premium hdpe it provides a drainage layer and filtering layer all in one membrane. At permagard we stock an 8mm and 20mm cavity. Bauder ltd 70 landseer road ipswich ip3 0dh t. Bauder sdf drainage layer material of the drainage layer polyamide monofilament weight of the drainage layer 400 g m.

The green roof drainage layer thickness depends on your needs. Moisture retention and protection mat for extensive green roofs and ballasted roofs. The growing substrate must be kept separate from the drainage layer with a filter sheet. Also the green roof drainage layer material is made to be sturdy and strong so that piercing can be limited and that the integrity of the entire program can be retained with ease.

It can be used in both extensive and intensive green roof systems on houses sheds garages and larger commercial projects. The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard. 353 0 42 9692 333. For a biodiverse green roof the various vegetation options above can be combined to help create different habitats.

Made of recycled non rotting polyester fibers for water and nutrient retention as well as a protection layer. 44 0 1473 257671. Protection drainage and filtration. Permaseal 8 green roof is a high quality green roof membrane ideal for creating an attractive and healthy green roof.

The capacity of these dimpled membranes vary depending on your green roof requirements. Filter layer this layer is a polypropylene geotextile fleece that prevents substrate fines and sediment from being washed in to the water storage or drainage component. It is made of a filtration veil and the polyamide monofilament fibre network layer. Bitumen resistant biologically and chemically neutral heat resistant.

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