Elements of the green roofDrainage and water retention layersPosted on Saturday July 7th, 20188 min read 0 571Drainage – protection – filtration layerIt 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 layerMaterial of the drainage layerPolyamide – monofilamentWeight of the drainage layer400 g/m²Protection/Filtration VeilPolyesterWeight of veil 100 g/m² eachThickness20 mmTotal weight600 g/m²Size1,0 x 20 m1,0 x 50 mDelivery formRoll of 20 m²Roll of 50 m²Item number7427 00017427 0000One side laminated version is also avaliable. Water retention panel – polystyreneThis 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 75MaterialExpanded polystyrene with recycled partsSize795 x 1298 mm (covered area 780 x 1283 mm)Height50 mm75 mmWeightabout 0,6 kg/m²about 0,95 kg/m²Storage capacityabout 10,1 l/m²about 21,5 l/m²Compression strengthabout 25 kN/m²about 35 kN/m²Delivery formPackage of 10 m²Package of 5 m²Item number7448 00507448 0075Drainage panel – polystyreneIt 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 50MaterialExpanded polystyrene with recycled partsSize795 x 1298 mm (covered area 780 x 1283 mm)Height50 mmWeightabout 0,6 kg/m²Compression strengthabout 25 kN/m²Delivery formPackage of 10 m²Item number7466 0050Mineral drainIt is used for the water retention of green roofs.Bauder Mineraldrän BS 2/11, L 2/11Materialslatevolcanic rockWater retention capacityAb. 15 Vol.-%Ab. 15 Vol.-%Volume weight when wet630 kg/m³930 kg/m³Volume weight when is saturated with water780 kg/m³1050 kg/m³Compaction by transporting and construction5 %10 %Bauder Mineraldrän BS 2/11 is delivered in bags of 60 l. Item number: 7412 0000Drainage elementWater drainage element for roofs with vegetationBauder Dränelement NF 10Pressed foil made ofHDPEWeight of pressed foilabout 620 g/m²Filtration veil made ofPPWeight of filtration veilabout 130 g/m²Thickness10 mmTotal weightabout 750 g/m²Compression strength400 kN/m²Delivery formRoll of 25 m²Item number7468 0010Drainage and water retention elementIt 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 20MaterialHDPESize1,06 x 2,36 mHeight20 mmWeight1,2 kg/m²Water retention capacityabout 7,4 l/m²Delivery formPanel of 2,5 m²Item number7468 0020Drainage and water retention elementIt 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 40MaterialHDPESize1,04 x 2,03 mHeight40 mmWeight1,8 kg/m²Water retention capacityabout 13,5 l/m²Filling volume21 l/m²Delivery formPanel of 2,1 m²Item number7468 0040Drainage and water retention elementThese 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 60MaterialHDPESize1,0 x 2,0 m (covered area 975 x 1975 mm)Height60 mmWeight2,0 kg/m²Water retention capacityabout 17 l/m²Filling volume33 l/m²Delivery formPanel of 2 m²Item number7468 0060Even 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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