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Drainage and water retention layers

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Drainage – protection – filtration layer

It is used for lightweight green roofs/terraces and has many functions: protection, drainage, and filtration. It is made of a filtration veil and the polyamide monofilament fibre network layer.

Bauder SDF – drainage layer
Material of the drainage layer Polyamide – monofilament
Weight of the drainage layer 400 g/m²
Protection/Filtration Veil Polyester
Weight of veil  100 g/m² each
Thickness 20 mm
Total weight 600 g/m²
Size 1,0 x 20 m 1,0 x 50 m
Delivery form Roll of 20 m² Roll of 50 m²
Item number 7427 0001 7427 0000

One side laminated version is also avaliable.

Water retention panel – polystyrene

This panel has integrated drain which is useful in case of ecological roofs.
It can be used for green terraces, pitched roofs and light roofs with vegetation.

Bauder wasserspeicherplatte WSP 50/WSP 75
Material Expanded polystyrene with recycled parts
Size
795 x 1298 mm 
(covered area 780 x 1283 mm)
Height 50 mm 75 mm
Weight about 0,6 kg/m² about 0,95 kg/m²
Storage capacity about 10,1 l/m² about 21,5 l/m²
Compression strength about 25 kN/m² about 35 kN/m²
Delivery form Package of 10 m² Package of 5 m²
Item number 7448 0050 7448 0075

Drainage panel – polystyrene

It is a water drainage panel for ecological roofs.
It can be used for green terraces, pitched roofs and light roofs with vegetation.

Bauder Dränpalette DP 50
Material Expanded polystyrene with recycled parts
Size
795 x 1298 mm 
(covered area 780 x 1283 mm)
Height 50 mm
Weight about 0,6 kg/m²
Compression strength about 25 kN/m²
Delivery form Package of 10 m²
Item number 7466 0050

Mineral drain

It is used for the water retention of green roofs.

Bauder Mineraldrän BS 2/11, L 2/11
Material slate volcanic rock
Water retention capacity Ab. 15 Vol.-% Ab. 15 Vol.-%
Volume weight when wet 630 kg/m³ 930 kg/m³
Volume weight when is saturated with water 780 kg/m³ 1050 kg/m³
Compaction by transporting and construction 5 % 10 %

Bauder Mineraldrän BS 2/11 is delivered in bags of 60 l. Item number: 7412 0000

Drainage element

Water drainage element for roofs with vegetation

Bauder Dränelement NF 10
Pressed foil made of HDPE
Weight of pressed foil about 620 g/m²
Filtration veil made of PP
Weight of filtration veil about 130 g/m²
Thickness 10 mm
Total weight about 750 g/m²
Compression strength 400 kN/m²
Delivery form Roll of 25 m²
Item number 7468 0010

Drainage and water retention element

It can be used for light, planted roofs. These elements have low retention capacity. They have to be mounted linked to each other and floating over the protective layer of the waterproofing. Together they form the drainage layer of the extensive green roof.

Bauder Drän- und Speicherelement DSE 20
Material HDPE
Size 1,06 x 2,36 m
Height 20 mm
Weight 1,2 kg/m²
Water retention capacity about 7,4 l/m²
Delivery form Panel of 2,5 m²
Item number 7468 0020

Drainage and water retention element

It can be used for light, planted roofs. These elements have medium retention capacity. They have to be mounted linked to each other and floating over the protective layer of the waterproofing. Together they form the drainage layer of the extensive green roof.

Bauder Drän- und Speicherelement DSE 40
Material HDPE
Size 1,04 x 2,03 m
Height 40 mm
Weight 1,8 kg/m²
Water retention capacity about 13,5 l/m²
Filling volume 21 l/m²
Delivery form Panel of 2,1 m²
Item number 7468 0040

Drainage and water retention element

These elements have high retention capacity and can be used for extensive and intensive green roofs with car traffic, heavy vehicles etc. They have to be mounted linked to each other and floating over the protective layer of the waterproofing. Together they form the drainage layer of the ecological roof.

Bauder Drän- und Speicherelement DSE 60
Material HDPE
Size
1,0 x 2,0 m 
(covered area 975 x 1975 mm)
Height 60 mm
Weight 2,0 kg/m²
Water retention capacity about 17 l/m²
Filling volume 33 l/m²
Delivery form Panel of 2 m²
Item number 7468 0060

Even in the early design stage of a rooftop or terrace ecological construction, we can advise you in order to choose adequate elements for your investment.

Drainage and water retention elements with low, medium or high retention capacity are components of the green roof system.

Manufacturers whose materials we use for landscape works are well known all over the world. We already had some common projects, and results were reliable and spectacular. If you choose us, the quality of building elements is doubled by the qualified human professionalism. Our team is well experienced in the use and maintenance of all building elements of a green roof. We can build extensive vegetation on industrial halls, intensive green terraces on office buildings, we can also create recreation and relaxing areas, intensive green roofs for high pedestrian traffic on the top of shopping malls, and many other ecological solutions. Thanks to the competence and professionalisms of our team, all materials used are compatible.

Protection and filtering layers, drainage of the green roof, together with control boxes, delimitation elements, evacuation gutters are key components of a green roof system.

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