Green Roof Water Retention Mat

This picture shows water retention matting just before kev to installed it on to this green roof in london.

Green roof water retention mat. Moisture retention and protection mat for extensive green roofs and ballasted roofs. Protection mats can also be used above the drainage system to retain stormwater. Xf drainage mats are engineered to divert excess water from the green roof quickly for healthy plant growth. Basic uses tremdrain gs is designed to be used in applications such as vegetative roof systems or greenscapes where some water retention is desired.

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. Mrm is available in two thicknesses 3 16 and 3 8 to suit your project s specific needs. Kev will simply unroll the water retention fleece and use a stanley knife to cut it to the same size as the roof. 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.

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. Allows rainwater to water vegetation in green roofs without waterlogging the plant xf is highly permeable geo composites that combine drainage filter aeration and water retention functions in one product. Ccw offers a wide variety of vegetation options for green roof systems.

Reinforced sheet membrane and hot applied liquid waterproofing system. The mrm is also a popular choice for fleece based living or green wall systems. Ccw miradrain gr9400 is a high capacity retention drainage composite with a three dimensional high impact polypropylene core for use on horizontal green roof. Green roof solutions moisture retention mat mrm protects the waterproofing membrane and holds moisture beneath the drainage layer in green roof 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. Aggredrain is most commonly used at a 1 minimum depth over a moisture retention mat grs mrm 14 or grs mrm 30. A filter fabric layer on top should separate the aggredrain from the growing media. Water storage mat can be used under low slope green roofs to enhance water retention and provide uniform water distribution.

The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. It looks like a rolled up blanket. Bitumen resistant biologically and chemically neutral heat resistant.