Roof Garden Drainage Layer

Drainage is installed as a continuous layer over the entire surface of the green roof.

Roof garden drainage layer.

The filter fabric top layer prevents clogging from the growing media and the waffle entanglements sit directly on the root barrier. It prevents small soil particles from filling the drainage layer and so the water buffering function of the drainage layer remains intact for longer. Cup style drainage sheets should be overlapped to eliminate the possibility of gaps being created between sheets. Pir panels are well suited as a layer of insulation on the roof garden as they have special grooves and milled edge connections that allow rainwater to pass to drainage systems easily.

Roof garden employs a multilayer system including a waterproof membrane drainage layers geotextile layer specialised soil medium soil stabiliser and a selection of appropriate plant species and varieties that best tolerates the often extreme environmental conditions found in a rooftop setting. Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions. Grs extenduct 2 includes an additional geocomposite fabric bonded to. Within the roof garden it is useful to store as much rainwater as possible to reduce the need for additional watering.

Storm water management for sedum and wildflower green roofs. Bauder sdf drainage layer material of the drainage layer polyamide monofilament weight of the drainage layer 400 g m. The floradrain fd 60 neo drainage element allows very high water retention suitable for all aspects of diverse roof gardens. Green roofs are made up of several layers typically a waterproof root barrier layer to protect the roof a drainage layer water retention mat then the growing medium and vegetation.

The water is stored across the roof area and reaches the plants by capillary action and diffusion. A green roof can help turn the ordinary into something really unique. Protection drainage and filtration. A filter fleece separates the drainage layer from the roof garden substrate in a green roof structure.

It is made of a filtration veil and the polyamide monofilament fibre network layer. Prevents fine particles in the growing media from entering and causing clogging. A 25 mm layer of coarse washed sand is positioned on the geotextile in intensive green roof systems before the addition of lightweight growing media. The design creates an open and continuous flow path even under high loads.

The geotextile also acts as a capillary wick when positioned onto versidrain 25p in extensive green roofs. Buy green roof drainage systems from 9 50. Other plastic drainage types should have adjacent sheets butted together. Drainage layers are used to provide a roof drainage system when installing a green roof.

Grs extenduct is a 40 recycled drainage core in a waffle pattern with a geocomposite fabric bonded to the top side.