Green Roof Drainage Plates

Systems with drainage mats.

Green roof drainage plates.

Three thicknesses of drainage plates are available to meet the drainage and water storage requirements of almost any green roof. The filter fabric top layer prevents clogging from the growing media and the waffle entanglements sit directly on the root barrier. The design creates an open and continuous flow path even under high loads. Since drainage plates are lightweight and easy to install they have become the most popular drainage system for green roofs.

This kind of board integrates the functions of storage and drainage of water drainage board drainage cells drainage plates for rooftop garden greening roofs. 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. Grs extenduct is a 40 recycled drainage core in a waffle pattern with a geocomposite fabric bonded to the top side. Drainage board is an important part of roof greening system and plays a role in storing and draining water.

Water is retained within pockets on the upper sides of the plates while excess water flows through small holes and spills over the edges to be carried off the roof. A separation fabric over the top of the plates retains. Drainage plates are recommended for roofs with slopes less than 1 12. Grs extenduct 2 includes an additional geocomposite fabric bonded to.

A synthetic protection water storage fabric weighing 500g m2 15 oz yd2 is applied over the waterproofing or root barrier membrane.