NBS Source
List your products
Description

Intensive green roof system with soft landscaping. Accessible green roofs and gardens are used for recreational and leisure purposes. The intensive green roof landscape variations are practically limitless for design and use, as it is feasible to create an environment at roof level like that of any designed garden or parkland. Intended for roofs that can withstand high live/ dead loadings.

Key features:

  • Provides valuable recreational space.
  • Vegetation selection is bespoke to the project.
  • Storm water management capacity.

Benefits:

  • Assists in maximizing the building's potential.
  • Vegetation can be chosen to fulfil BREEAM requirements.
  • System helps mitigate flooding.

Suitable waterproofing systems:

  • Bauder Total Green Roof System Roof Covering System.
  • Bauderflex Green Roof System.
  • Bauder LiquiTEC Cold Liquid Applied Roof System.
  • Bauder Bakor790-11 Hot Melt Rubberized Bitumen Roof Coating System.

Suitable finish:

Vegetation supplied by others.

General information
Uniclass 2015
Ss_45_40_47_40 Intensive green roof systemsPrimary
CAWS

Q37/110 Intensive green roof

Specification data - Intensive green roof systems
Product Reference

Bauder Intensive Green Roof System, Soft Landscaping

Slip Layer

Not required

For inverted roofs or roofs over 3°.

Bauder PE Foil Separation Layer

0.2 mm-thick separation and slip layer, polyethylene foil. Loose-laid on the completed waterproofing in two layers.

Protection layer

Not required

For inverted roofs.

Bauder FSM 600 Protection Mat

4 mm-thick, heavy-duty protection layer constructed from polyester and polypropylene fibres. Laid on the completed waterproofing to protect from damage.

Bauder FSM 1100 Protection Mat

8 mm-thick, heavy-duty protection layer constructed from polyester and polypropylene fibres. Laid on the completed waterproofing to protect from damage.

Bauder Pro-Mat Protection Mat

Heavy-duty protection layer constructed from recycled, shredded tyres. Laid on the completed waterproofing to protect from damage. Should not be used over PVC waterproof membranes.

Drainage/ water storage layer

Bauder DSE40 Drainage and Protection Layer

40 mm-deep, high-density polyethylene (HDPE) water storage and multidirectional drainage layer. Roofs pitched between 0 and 5°.

Bauder DSE60 Drainage and Protection Layer

60 mm-deep, high-density polyethylene (HDPE) water storage and multidirectional drainage layer. Roofs pitched between 0 and 5°.

Bauder Reservoir Board Drainage and Protection Layer, 50 mm deep

Water storage, multidirectional drainage layer. For roofs pitched between 0 and 25°.

Bauder Reservoir Board Drainage and Protection Layer, 75 mm deep

Water storage, multidirectional drainage layer. For roofs pitched between 0 and 25°.

Board fill layer

Not required

For Bauder DSE40 Drainage and Protection Layer and Bauder Reservoir Board Drainage and Protection Layer.

Bauder Mineral Drain

Lightweight, single-size stone used in Bauder DSE60 Drainage and Protection Layer.

Filter layer

Bauder Filter Fleece

Fine mesh polypropylene (PP) geotextile, laid over the drainage/ water storage layer.

Substrate/ growing medium

Bauder Biodiverse Substrate (FLL-compliant)

Minimum depth of 100 mm.

Accessories

See 'Options' below and insert requirements.

Standard product features

Maximum slope:

15°.

Filter layer:

- Bauder Filter Fleece:

Fine mesh polypropylene (PP) geotextile filter fleece, designed to separate and contain Bauder substrates from the drainage element of the green roof system. It prevents fine material from being washed out of the substrate layer. Loose-laid over the drainage layer. The fleece should be taken up the sides of the substrate between the substrate and drainage trim or pebble margin. Fleece joints should be overlapped by 150 mm. Fleece should not be taken over the top of drainage outlets.

A filter layer is not used over reservoir board on slopes 6° or above, where the reservoir board is directly filled with substrate growing medium. However, a separate strip of Bauder Filter Fleece must still be used to separate the growing medium from the vegetation barrier at perimeter abutments and around pipe protrusions, outlet inspection chambers, etc. Dressed up at all upstands and around all protrusions to be at least flush with the finished surface level. At abutments, the filter fleece must be extended by 500 mm beneath the reservoir board to separate the vegetation/ drainage barrier and substrate growing medium, and then brought up between these two items.

  • Material: polypropylene fleece.
  • Weight (saturated): 0.125 kg/m².
  • Pore size: 0.13 mm.
  • Thickness: 1 mm.
  • Roll size: 1 x 100 m/ 2 x 100 m.
  • Coverage: 100 m² / 200 m².
  • Water storage: none.

Substrate/ growing medium:

- Bauder Biodiverse Substrate (FLL-compliant):

Lightweight, free-draining substrate designed as a growing medium for a range of different plant species. This FLL/ GRO-compliant substrate provides a free-draining growing medium for biodiverse green roof systems. Additionally, it provides aeration qualities, with some inherent water retention.

  • Material: recycled crushed brick, expanded clay, shale, composted pine bark.
  • Maximum weight (saturated): <1200 kg/m³.
  • Typical supply weight: 950 kg/m³ (approximate).
  • Water storage (by volume): 35%.
  • pH value: 6–8.5.

Product Options

Slip layer:

- Bauder PE Foil Separation Layer:

Separation layer and slip layer to be rolled out loose over the completed waterproofing layer in two layers for intensive landscaping (not required for inverted roofs). It is only required for roofs with a fall between 0 and 3º (a slip layer is not necessary or advisable for slopes above 3º).

All laps are 150 mm, and roll sides should join between layers. Upstands should be extended to the top of the growing medium. Sufficient foil must be allowed to enable it to be taken up at all upstand and edge details prior to installation of the protection layer.

  • Material: polyethylene foil manufactured from recycled granules.
  • Roll size 4 x 50 m (w x l).
  • Thickness: 0.2 mm (approximate).
  • Weight (saturated): 0.19 kg/m².

Protection layer:

- Bauder Eco-Mat Protection Fleece:

Lightweight protection layer constructed from recycled manmade fibres. Laid on the completed waterproofing to protect the completed waterproofing from damage (not required for inverted roofs).

Usually installed under the entire green roof area but kept clear of all outlets and drainage trims. Eco-mat should be lapped by 150 mm at all joints. Loose-laid. Sufficient protection fleece must be allowed for so that it may be installed to all abutment upstands and edge details, in accordance with Bauder instructions.

  • Material: 100% recycled manmade fibre mix.
  • Size: 2 x 30 m (w x l).
  • Thickness: 6 mm.
  • Coverage: 60 m².
  • Weight (saturated): 3.8 kg/m².

- Bauder FSM 600 Protection Mat/ FSM 1100 Protection Mat:

Heavy-duty protection layer, constructed from polyester and polypropylene fibres. Laid on the completed waterproofing to protect the completed waterproofing from damage (not required for inverted roofs).

Usually installed under the entire green roof area, but kept clear of all outlets and drainage trims. FSM mats should be lapped by 150 mm at all joints. Loose-laid. Laps to be sealed by lightly heating overlap area with a propane gas torch/ hot air welding gun to melt the polypropylene fibres and then press-sealing the two fleece sheets together. Sufficient protection fleece must be allowed so that it may be installed to all abutment upstands and edge details, in accordance with Bauder instructions.

  • Material: polyester and polypropylene fibre mix.
  • Size: FSM 600: 2 x 30 m (w x l); FSM 1100: 2 x 15 m (w x l).
  • Thickness: FSM 600: 4 mm; FSM 1100: 8 mm.
  • Coverage: FSM 600: 60 m²; FSM 1100: 30 m².
  • Weight (saturated): FSM 600: 3.6 kg/m²; FSM 1100: 7.16 kg/m².

- Bauder Pro-Mat Protection Mat:

Heavy-duty protection layer, constructed from recycled shredded tyres. Laid on the completed waterproofing to protect the completed waterproofing from damage (not required for inverted roofs, and not for use with PVC waterproof membranes).

Usually installed under the entire green roof area, but kept clear of all outlets and drainage trims. Usually installed to provide access over waterproofing in heavily trafficked areas. Pro-mat should be lapped by 150 mm at all joints.

Loose-laid. Where landscaping installation is not imminent, loose laps should be taped with gaffer tape to eliminate the trip hazard. Sufficient protection fleece must be allowed so that it may be installed to all abutment upstands and edge details, in accordance with the Bauder instructions.

  • Material: 100% recycled shredded rubber.
  • Size: 1.25 x 10 m (w x l).
  • Thickness: 6 mm.
  • Coverage: 12.5 m².
  • Weight (saturated/ dry): 4.3 kg/m².

Drainage layer:

- Bauder DSE40 Drainage and Protection Layer:

High-density polyethylene (HDPE) water storage and multidirectional drainage layer. Used on roofs with 0–5° finished falls. Loose-laid (open profile cup up) on to the protection layer (or water flow-reducing layer, WFRL, on inverted roofs) over completed waterproofing to provide continuous drainage within hard and soft landscaping. It is primarily used where the load is moderate, such as extensive green roofs, beneath paving laid on sand/ cement or gravel bedding, or within planter beds.

Boards should be interlocked by a minimum of one profile cup and all board joints staggered. Cut to fit closely around penetrations and outlets.

  • Material: 100% recycled, high-density polyethylene.
  • Size: 1.04 x 2.03 m (2.1 m²).
  • Nominal wall thickness: 2 mm.
  • Depth: 40 mm.
  • Coverage: 2 m² (approximate).
  • Water storage: 13.5 L.
  • Weight (saturated): 15.3 kg/m².

The drainage/ water storage board also provides a suitable base surface for building concrete or brick kerbs/ walls. The specified infill haunching should be installed over the board to the required depth of cover, poured directly into the profile cup of the board. These should be constructed to provide an adequate support for the raised masonry planters.

- Bauder DSE60 Drainage and Protection Layer:

High-density polyethylene (HDPE) water storage and multidirectional drainage layer. Used on roofs with 0–5° finished falls. Loose-laid (open cups down) on to the protection layer (or water flow-reducing layer, WFRL, on inverted roofs) over completed waterproofing to provide continuous drainage within hard and soft landscaping. Provides a pressure-resistant stable base for high loads, or support for roof-mounted equipment without compression to the drainage capacity. If DSE60 is filled with Bauder Mineral Drain, it provides a robust temporary finish able to accept site traffic, including vehicles.

Boards should be tightly overlapped at the edges and staggered. Cut to fit closely around penetrations and outlets.

  • Material: 100% recycled, high-density polyethylene.
  • Size: 1.975 x 1.975 m (1.93 m²).
  • Nominal wall thickness: 2 mm.
  • Depth: 60 mm.
  • Coverage: 1.9 m² (approximate).
  • Water storage (when filled with Bauder Mineral Drain): 10–12 L.
  • Filling capacity: 33 L/m².
  • Compressive strength: 100 kN/m² empty/ >1000 kN/m² filled.
  • Weight (saturated and filled with Bauder Mineral Drain): 51.9 kg/m².

The drainage/ water storage board also provides a suitable base surface for building concrete or brick kerbs/ walls. The specified infill haunching should be installed over the board to the required depth of cover, poured directly into the profile cup of the board. These should be constructed to provide an adequate support for the raised masonry planters.

- Bauder Reservoir Board Drainage and Protection Layer:

Water storage and multidirectional drainage layer. Used on roofs with 0–25° finished falls. Boards laid over the entire area to provide continuous drainage and increased water capacity for the vegetation.

Loose-laid (open cups up) onto the protection layer (or water flow-reducing layer, WFRL, on inverted roofs) over completed waterproofing, ensuring that the rebated boards are properly interlocked to provide adequate anchorage prior to the soil being laid. The board cups can be filled with water to provide temporary loading against wind uplift, prior to the remaining landscaping elements being installed in accordance with the specification.

  • Material: expanded polystyrene.
  • Size: 0.795 x 1.298 m (rebates).
  • Depth: 50 mm/ 75 mm.
  • Coverage: 1 m².
  • Water storage: 10/ 22.1 L.
  • Compressive strength: 25/ 35 kN/m².
  • Weight (saturated): 10.65/ 22.1 kN/m².

Board Fill:

- Bauder Mineral Drain:

Lightweight, single-size crushed limestone used in Bauder DSE60 Drainage and Protection Layer. This substrate provides an ecological drainage method for green roof systems. Additionally, it provides aeration qualities with some inherent water retention. Usually installed directly into the drainage board to give an even coverage of the required depth.

  • Material: single-size crushed limestone.
  • Weight (saturated): ≤1,375 kg/m³.
  • Water storage: 8–10% by volume.
  • pH value: 7–9.

Accessories:

- Bauder ALU250 Inspection Chamber System:

The Bauder ALU250 Inspection Chamber is fabricated from a perforated aluminium sheet with an opening/ lockable lid, and is used for intensive and extensive soft landscaping, as well as ballasted inverted roofs. Install centrally over rainwater outlets. A simple on-site modification allows the unit to be used over outlets that are located close to wall or kerb abutments.

The Inspection Chamber is suitable for landscaping depths of less than 100 mm. Where landscaping is deeper than 100 mm, the 50 mm or 100 mm height adaptors can be added as necessary to achieve the required height, to be level with or slightly proud of the surrounding landscaping.

Surround: using 20/ 40 mm grade washed pebbles; the inspection chamber must be surrounded by a 500 mm vegetation barrier to prevent unwanted growth obstructing the drainage system.

ALU250 Inspection Chamber:

  • Material: 1.5 mm aluminium (2 mm lid).
  • Size: 250 (chamber only) x 250 (chamber only) x 100 mm (l x w x h).
  • Weight: 950 g.
  • Colour: silver grey (RAL 9006).

ALU250 Height Adaptor 50 mm:

  • Material: 1.5 mm aluminium.
  • Size: 250 x 250 x 50 mm (l x w x h).
  • Weight: 250 g.
  • Colour: silver grey (RAL 9006).

ALU250 Height Adaptor 100 mm:

  • Material: 1.5 mm aluminium.
  • Size: 250 x 250 x 100 mm (l x w x h).
  • Weight: 450 g.
  • Colour: silver grey (RAL 9006).

Retention Angle (supplied by others):

Purpose-designed aluminium or stainless steel perimeter retention angles should be used as landscaping retention/ to contain landscaping or pebble ballast when interfacing soft or hard landscaping (when Bauder Trims are not sufficient in height). Contact manufacturer for further information.

Vegetation Barrier (supplied by others):

For slopes below 10°, a vegetation barrier must be provided at all perimeters, abutments and penetrations, including protrusions (i.e. man-safe posts, etc.). 20/ 40 mm rounded river-washed pebbles are recommended. Stones/ aggregates with sharp edges must not be used, i.e. flint. For roof slopes of 10° and upwards, a hard edge should be selected, using paving slabs as an alternative to 20/ 40 mm round river-washed pebbles.

In accordance with current GRO guidelines, the specified barrier widths are as follows:

  • Minimum 300 mm, but increasing to 500 mm at vertical walls with opening windows or doors, or to abutments with opening rooflights.
  • Every 40 m, there is a 30 mm-high barrier constructed of non-flammable materials, or a one metre-wide strip of solid paving, gravel or pebbles.
  • At all open drainage perimeters, drainage trim must be used to contain the vegetation barrier.

Jute Anti-Erosion Net (supplied by others):

  • Biodegradable jute netting installed over plug-planted/ seeded growing medium to prevent wind erosion until planting is established.
  • Where the exposure of the roof is such that there is a risk of the substrate being subject to wind erosion, provision must be made to install biodegradable (Jute) erosion net over the installed substrate, to prevent erosion until the plants are established. The net should be secured using biodegradable pegs.

Irrigation (supplied by others):

The need for irrigation in a biodiverse green roof system is dependent upon the client requirement for the visual appearance of the vegetation. If it is intended that the roof should have colour and interest for the longest period through the growing season then irrigation will significantly aid in achieving this. Should the requirement be only to deliver biodiversity then the provision of sufficient watering points at roof level to allow for only occasional watering in periods of prolonged drought can be considered sufficient. The provision of either a leaky pipe or drip line irrigation system is recommended.

Literature
Similar products from Bauder Ltd