Green Roof Drainage Mat Thickness

Made of non rotting fibers penetration resistant for water and nutrient retention as well as protection layer.

Green roof drainage mat thickness.

Protection drainage and filtration. Drainage board is a lightweight multi directional drainage to allow for free dispersal of the water to the nearest outlet. Extensive green roofs are less than six inches deep and are typically 2 4 inches in depth. Used within schemes where the growing medium is of sufficient depth to negate the need for additional water storage for the vegetation.

It evaluates green roof performance related to fire foot traffic resistance and water leakage. 17 20 mm. Systems with drainage mats. It is specified in some very low pitched extensive green roofs.

Roofs that have potted plants or container gardens are not generally considered green roofs. Moisture retention and protection mat specifically designed for sloped green roofs. The board is effective with fiber cement wood and foam backed vinyl. In july 2011 the liveroof hybrid green roof system became the first to be fm approved according the fm standard 4477.

Green roof solutions gr32 and gr52 drainage panels come in 24 x 24 interlocking squares constructed of 100 recycled high density polypropylene hdpp. Designed for sloped green roofs. It is ideal for drainage and drying behind stucco and. It is made of a filtration veil and the polyamide monofilament fibre network layer.

Developed by fm approvals llc fm standard 4477 is the approval standard for vegetative roof systems. Sdf mat drainage filtration layer. The gr52 can withstand 0 352 gallons per square foot or 1 4 gallons per panel. Green roof systems of this type are drained by a.

Drainage mats nominal thickness. Their light weight makes them ideal for retrofit projects on older buildings or any stricture with limits on the total weight load. Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions. The nominal thickness of a green roof is the approximate total height of the soil and drainage components that constitute the green roof system excluding the roof structure insulation waterproofing and plants.

Because dc14 is made of extruded polystyrene xps it does not absorb moisture and is not a food source for mold. The grs gr52 panel size is 24 x 24 x 2 125.