Green Roof Water Retention Mat

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.

Green roof water retention mat.

Green roof solutions moisture retention mat mrm protects the waterproofing membrane and holds moisture beneath the drainage layer in green roof systems. Moisture retention and protection mat for intensive green roofs. Mrm is available in two thicknesses 3 16 and 3 8 to suit your project s specific needs. Protection mats can also be used above the drainage system to retain stormwater.

Made of recycled non rotting polypropylene fibres for water and nutrient retention as well as protection layer. The mrm is also a popular choice for fleece based living or green wall systems. Since three layers of water storage mat will retain approximately one inch of rainfall it can also be covered with a gravel ballast to create non vegetated roofs that reduce and delay stormwater runoff blue roofs. Protection mats are used to protect against mechanical damage and damage during construction and as a base under rigid drainage products and green roof trays.

Water storage mat can be used under low slope green roofs to enhance water retention and provide uniform water distribution. Designed for intensive roof gardens walkways and driveways. The highly retentive qualities of this fabric provide a slow evaporative release of moisture for green roof plants from deep in the green roof system. Tremdrain gs drainage mats consist of a perforated polystyrene core with fabrics attached to both sides.

Xf drainage mats are engineered to divert excess water from the green roof quickly for healthy plant growth. A filter fabric layer on top should separate the aggredrain from the growing media. The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. Aggredrain is most commonly used at a 1 minimum depth over a moisture retention mat grs mrm 14 or grs mrm 30.

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. Basic uses tremdrain gs is designed to be used in applications such as vegetative roof systems or greenscapes where some water retention is desired.