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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 layerPolyamide – monofilament
Weight of the drainage layer400 g/m²
Protection/Filtration VeilPolyester
Weight of veil 100 g/m² each
Thickness20 mm
Total weight600 g/m²
Size1,0 x 20 m1,0 x 50 m
Delivery formRoll of 20 m²Roll of 50 m²
Item number7427 00017427 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
MaterialExpanded polystyrene with recycled parts
Size
795 x 1298 mm 
(covered area 780 x 1283 mm)
Height50 mm75 mm
Weightabout 0,6 kg/m²about 0,95 kg/m²
Storage capacityabout 10,1 l/m²about 21,5 l/m²
Compression strengthabout 25 kN/m²about 35 kN/m²
Delivery formPackage of 10 m²Package of 5 m²
Item number7448 00507448 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
MaterialExpanded polystyrene with recycled parts
Size
795 x 1298 mm 
(covered area 780 x 1283 mm)
Height50 mm
Weightabout 0,6 kg/m²
Compression strengthabout 25 kN/m²
Delivery formPackage of 10 m²
Item number7466 0050

Mineral drain

It is used for the water retention of green roofs.

Bauder Mineraldrän BS 2/11, L 2/11
Materialslatevolcanic rock
Water retention capacityAb. 15 Vol.-%Ab. 15 Vol.-%
Volume weight when wet630 kg/m³930 kg/m³
Volume weight when is saturated with water780 kg/m³1050 kg/m³
Compaction by transporting and construction5 %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 ofHDPE
Weight of pressed foilabout 620 g/m²
Filtration veil made ofPP
Weight of filtration veilabout 130 g/m²
Thickness10 mm
Total weightabout 750 g/m²
Compression strength400 kN/m²
Delivery formRoll of 25 m²
Item number7468 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
MaterialHDPE
Size1,06 x 2,36 m
Height20 mm
Weight1,2 kg/m²
Water retention capacityabout 7,4 l/m²
Delivery formPanel of 2,5 m²
Item number7468 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
MaterialHDPE
Size1,04 x 2,03 m
Height40 mm
Weight1,8 kg/m²
Water retention capacityabout 13,5 l/m²
Filling volume21 l/m²
Delivery formPanel of 2,1 m²
Item number7468 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
MaterialHDPE
Size
1,0 x 2,0 m 
(covered area 975 x 1975 mm)
Height60 mm
Weight2,0 kg/m²
Water retention capacityabout 17 l/m²
Filling volume33 l/m²
Delivery formPanel of 2 m²
Item number7468 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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