The growing substrate must be kept separate from the drainage layer with a filter sheet.
Green roof protection layer.
As a general rule the more the roof is trafficked the higher the level of protection required for example extensive green roofs would generally experience much lower levels of traffic damage during maintenance than publicly accessed areas.
Drainage layer the green roof drainage layer provides you with a way to ensure there is nothing getting through and that excess water is drained away to avoid any waterlogging or increase in weight on the roof.
Older green roofs often used a permeable layer of rock aggregate such as scoria or gravel for drainage.
Our protection mats are multifunctional products which are compatible with multiple membranes for use as a first layer of protection on the waterproofing membrane or above the root barrier.
Protection matting is installed directly on the waterproofing layer for root resistant membranes or atop the installed root barrier layer providing further uncertified protection against root penetration and doubling as a separation sheet.
Benefits of green roofs.
The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard.
The quality of the material its thickness weight and tensile strength.
Protection drainage and filtration.
Bauder sdf drainage layer material of the drainage layer polyamide monofilament weight of the drainage layer 400 g m.
Many green roof systems feature a water storage layer incorporated into the drainage layer so as to have a reserve of water for bottom up irrigation of the vegetation.
The rock aggregate should also have a.
The clay and silt content of materials used in a rock aggregate drainage layer should be 10 per cent by mass.
In order to evaluate the compatibility of this layer the followings must be checked.
Systems secured by roof layer.
The protection matting may provide some noise absorbing capability.
Benefits of green roofs.
Mechanical protection is necessary.
Systems secured by roof layer.
Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions.
It is made of a filtration veil and the polyamide monofilament fibre network layer.
This layer delivers protection against mechanical damage.