Bauder Intensive Landscaping System

Bauder Intensive Landscaping System

Bauder Ltd

Bauder's Intensive Landscape System. Options to combine Intensive soft and hard landscaping with the ability to construct path and roadways.

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Description

Bauder Intensive Green Roof System, 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 similar to 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.
  • Substrate meets FLL European Standards

General information

Features

This BIM Object must be supported by a project specific specification from Bauder, incorporating system build-up, detail design and performance calculations if a full Bauder system guarantee is required. Please contact your local Bauder Representative or technical@bauder.co.uk

WarrantyDescription

Guarantee options could include ‘Product’, ‘Product and Workmanship’ and ‘Product, Workmanship and Design’ Guarantees. All guarantees available for this system are subject to the works being carried out in accordance with the Bauder specification and being installed by a Bauder Approved installer. For full details and further information regarding guarantees and alternative systems please contact your local Bauder Representative or technical@bauder.co.uk

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.

Waterproofing

Bauder Total Green Roof System Roof Covering System (specified in J41)

Bauderflex Green Roof System (specified in J41)

Bauder LiquiTEC Cold Liquid Applied Roof System (specified in J31)

Bauder Bakor790-11 Hot Melt Rubberized Bitumen Roof Coating System (specified in J31)

Slip Layer

Bauder PE Foil separation layer

0.2mm separation and slip layer, polyethylene foil. Loose laid on the completed waterproofing in 2 layers. (NB: Not required for inverted roofs or roofs over 3°).

Protection layer

Bauder FSM 600 Protection Mat

4mm, heavy duty protection layer made from polyester and polypropylene fibres. Laid on the completed waterproofing to protect from damage. (NB: Not required for inverted roofs)..

Bauder FSM 1100 Protection Mat

8mm, heavy duty protection layer made from polyester and polypropylene fibres. Laid on the completed waterproofing to protect from damage. (NB: Not required for inverted roofs).

Bauder Pro-Mat Protection Mat

Bauder’s heaviest duty protection layer made from recycled shredded tyres. Laid on the completed waterproofing to protect from damage. Do not use over PVC waterproof membranes (i.e. Bauder Single Ply Thermofol PVC Roof system). (NB: Not required for inverted roofs).

Drainage/ water storage layer

Bauder DSE40 Drainage and Protection Layer

HDPE 40mm depth water storage and multi-directional drainage layer. Roofs pitched between 0-5°.

Bauder DSE60 Drainage and Protection Layer

HDPE 60mm depth water storage and multi-directional drainage layer. Roofs pitched between 0-5°. Must always be infilled.

Bauder Reservoir Board Drainage and Protection

Water storage, multi-directional drainage layer available in two depths 50mm or 75mm. Roofs pitched between 0-25°.

Board fill layer

Bauder Mineral Drain

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

Filter layer

Bauder Filter Fleece

Fine mesh PP geotextile used in conjunction with Bauder substrates. Laid over the Bauder drainage/water storage layer, preventing fine material from being washed out of the substrate layer.

Substrate/ growing medium

Bauder Intensive Substrate (FLL Complient)

Recycled crushed brick, expanded clay, shale, composted pine bark. Normal minimum depth for intensive soft landscaping – from ca. 200mm. Depth to be confirmed by client/landscape architect.

Vegetation

Supplied by others

Maximum Slope

15°

Accessories

See 'Options' below and insert requirements.

Standard product features

Vegetation:

- Supplied by others.

To clients/landscape architects’ requirements.

Substrate / Growing medium

- Bauder Intensive Substrate (FLL Compliant):

Lightweight, free draining substrates designed as a growing medium for a range of different plant species. This FLL/GRO compliant substrate provides a free draining, growing medium for intensive 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): ≤1,250kg/m3
  • Typical supply weight (damp): c. 1000kg/m3.
  • Water storage (by volume): 35%
  • pH value: 6-8.5
  • Bulk bag size: 1.25m3
  • Small bag size: 25L

Normally installed above a Filter Fleece and drainage board product.

Roofs pitched 6° and above, apply the substrate growing medium directly into the open cup of the Reservoir board and then build up to the depth specified.

Substrates are raked out to give an even coverage of the required depth after settlement.

Handle in the driest condition possible. Do not handle or install when wet or frozen.

Start by applying two equal layers, building up to the required maximum depth.

Gently firm each layer before spreading the next. Allowance should be made for any settlement that may occur. It is recommended that ‘measuring stick’ markers of the required depth be used around the roof area to ensure that a minimum acceptable thickness of growing medium is achieved.

Depending on size and access of the project the ‘substrate’ can be supplied by various methods i.e. tipper, silo lorry (pumping directly onto the roof area), Big bags, or sacks. Prior to costing this element of the installation, the ‘Bauder Approved Contractor’ must contact Bauder Ltd so that they may advise on the best solution on any specific contract.

When the substrate is to receive a turf or grass seed finish, an additional dressing of organic compost should be applied to the surface of the Intensive Substrate at the rate of 10L/m², which is equivalent to a depth of 10mm.

Important note regarding alternative substrates: If alternative substrates are required (e.g. topsoil…etc.), Bauder does not take any responsibility for the performance of such substrates supplied from an alternative source. We recommend that alternative substrates should be covered by a technical data sheet and certified in writing as suitable to support the system and plants specified. Saturated weight loadings must be provided directly from the supplier of the substrate and should be the subject to a structural engineer’s approval.

Filter layer:

- Bauder Filter Fleece:

Fine mesh PP geotextile used in conjunction with Bauder substrates. Bauder Filter Fleece is designed to separate and contain Bauder substrates from the drainage element of the green roof system (for slopes 0-5°). 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 150mm. Fleece should not be taken over the top of drainage outlets.

Upstands (soft landscaping): Extend up, between vegetation barrier and growing medium and trim flush with finished surface level.

Upstands (Hard landscaping): Extend to top of perimeter abutments and trim flush just below finished surface level.

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 all upstands and around all protrusions to at least flush with the finished surface level. At abutments the Filter Fleece must be used to separate the vegetation/drainage barrier and substrate growing medium by extending it 500mm beneath the reservoir board and then bringing it up between these two items.

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

Separation layer:

- Bauder PE Foil Separation Layer:

(Not required for inverted roofs).

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

All laps to be 150mm with care being taken to ensure that roll sides join between layers. Upstands: Extend to top of growing medium. Sufficient foil must be allowed for to enable it to be taken up all upstand and edge details prior to installation of the protection layer.

  • Roll width: 4m.
  • Roll length: 50m
  • Thickness: ca. 0.2mm.
  • Weight (saturated): 0.19kg/m².
  • Material: Polyethylene foil manufactured from recycled granules

Product Options

Protection layer:

- Bauder FSM 600 / FSM 1100 Protection Mat:

Heavy duty protection layer made from polyester and polypropylene fibres. Laid on the Bauder PE Foil to protect the completed waterproofing from damage (not required for inverted roofs).

Normally installed under the entire green roof area but kept clear of all outlets and drainage trims. FSM mats should be lapped by 150mm 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 seal the two fleece sheets together.

Sufficient protection fleece must be allowed for so that it may be installed to all abutment upstands and edge details, in accordance with the Bauder instructions. Extend to full height of the upstand and secure in place by using a lead or fabricated metal counter-flashing.

Should be trimmed well back from ALL outlets.

Openings in landscape restraint kerbs (where present - roof slopes above 5º), the protection layer should be cut away from the openings/ gaps to avoid impeding drainage.

  • Width: 2m.
  • Length: 30m / 15m
  • Thickness: 4mm / 8mm.
  • Coverage: 60m² / 30m2.
  • Weight (saturated): 3.6kg/m² / 7.16kg/m².
  • Material: Polyester and polypropylene fibre mix.

- Bauder Pro-Mat Protection Mat

Bauder's Heaviest duty protection layer made from recycled shredded tyres. Laid on the completed waterproofing to protect the completed waterproofing from damage (not required for inverted roofs, not for use with PVC waterproof membranes / Bauder Single Ply Thermofol PVC Roof system).

Normally installed under the entire green roof area but kept clear of all outlets and drainage trims.

Normally installed to provide access over waterproofing in heavily trafficked areas

Pro-mat should be lapped by 150mm 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 for so that it may be installed to all abutment upstands and edge details, in accordance with the Bauder instructions. Extend to full height of the upstand and secure in place by using a lead or fabricated metal counter-flashing.

Should be trimmed well back from ALL outlets.

Openings in landscape restraint kerbs (where present - roof slopes above 5º), the protection layer should be cut away from the openings/ gaps to avoid impeding drainage.

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

Drainage/Water storage layer:

- Bauder DSE40 Drainage and Protection Layer:

HDPE water storage and multi-directional drainage layer. Used on roofs 0-5° finished falls. Loose laid (open profile cup up) on to the Protection Layer (or 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 to high, such as extensive and intensive green roofs. Its compressive strength makes it suitable beneath paving laid on sand/cement or gravel bedding or within planter beds.

Boards are to be interlocked by a minimum of one profile cup and all board joints staggered. The ‘X’ stamped impression on the highpoint of the cup moulding indicates where boards overlap. Cut to fit closely around penetrations and outlets.

  • Size: 1.04m x 2.03m (2.1m2).
  • Nominal wall thickness: 2mm
  • Depth: 40mm.
  • Coverage: 2m² (approx.).
  • Water storage: 13.5L.
  • Filling capacity: 21L.
  • Compressive strength: 80KN/m2 empty / >1000KN/m2 aggregate filled.
  • Weight (saturated): 15.3kg/m².
  • Material: 100% recycled high-density polyethylene.

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:

HDPE water storage and multi-directional drainage layer. Used on roofs 0-5° finished falls. Loose laid (open cups down) on to the Protection Layer (or 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 are to be tightly overlapped at the edges and staggered. Cut to fit closely around penetrations and outlets.

  • Size: 0.975m x 1.975m (1.93m2).
  • Nominal wall thickness: 2mm
  • Depth: 60mm.
  • Coverage: 1.9m².
  • Water storage (when filled with Bauder Mineral Drain): 10-12L.
  • Filling capacity: 33l/m2.
  • Compressive strength: 100KN/m2 empty / >1000KN/m2 filled.
  • Weight (saturated and filled with Bauder Mineral Drain): 51.9kg/m².
  • Material: 100% recycled high-density polyethylene.

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 cups of board. These could be constructed to separate landscaping types (soft/hard) or to provide an adequate support for the raised masonry planters.

- Bauder Reservoir Board Drainage and Protection Layer:

Water storage and multi-directional drainage layer. Used on roofs 0-25° finished falls (the only suitable Drainage and Protection layers for slopes 6° upwards). Boards laid over the entire area to provide continuous drainage and increased water capacity for the vegetation.

Loose laid (open cups up) on to the Protection Layer (or 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 installing the remaining landscaping elements in accordance with the specification. In the event of any confusion concerning this item, Bauder Ltd should be contacted so that advice may be given.

Cut to fit closely around penetrations and outlets.

Roof slopes 6° upwards, a parapet wall or restraint kerb must be provided to support the water storage / drainage board at the base of the slope. This should be included within the deck construction and reference made within the waterproofing specification also. This in turn will restrain and stabilise the landscaping against imposed shear load forces.

  • Size: 0.795m x 1.298m (rebates).
  • Depth: 50mm / 75mm.
  • Coverage: 1m².
  • Water storage (when unfilled): 10L / 21.5L.
  • Compressive strength: 25KN/m2 / 35KN/m2.
  • Weight (substrate filled and saturated): 10.65kg/m² / 22.5kg/m2.
  • Material: Expanded polystyrene.

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.

Normally installed directly into the drainage board to give an even coverage of the required depth. See Bauder's Green Roof Installation Guide for full details.

  • Bulk bag size: 1.25m3.
  • Small bag size: 25kg.
  • Water storage: 8-10% by vol.
  • pH Value: 7-9.
  • Weight (saturated): ≤1,375Kg/m3.
  • Material: Single size crushed limestone.

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 100mm. Where landscaping is deeper than 100mm, the 50mm or 100mm 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 20/40mm grade washed pebbles; the inspection chamber must be surrounded by a 500mm vegetation barrier to prevent unwanted growth obstructing the drainage system.

ALU250 Inspection Chamber

  • Material: 1.5mm aluminium (2mm lid)
  • Length: 250mm (chamber only)
  • Width: 250mm (chamber only)
  • Height: 100mm
  • Weight: 950g
  • Colour: Silver grey (RAL 9006)

ALU250 Height Adaptor 50mm

  • Material: 1.5mm aluminium
  • Length: 250mm
  • Width: 250mm
  • Height: 50mm
  • Weight: 250g
  • Colour: Silver grey (RAL 9006)

ALU250 Height Adaptor 100mm

  • Material: 1.5mm aluminium
  • Length: 250mm
  • Width: 250mm
  • Height: 100mm
  • Weight: 450g
  • Colour: Silver grey (RAL 9006)

- Retention Angle (supplied by others) - used as landscaping retention (when Bauder Trims are not sufficient in height) – Roofs Sloped from 0 to 5° (inclusive).

Purpose designed aluminium or stainless-steel perimeter retention angles, used as landscaping retention, supplied and fabricated by others to the landscape architect’s requirements and incorporating drainage perforations where required

Cutting: Neat, accurate and without spalling.

Junctions: Cut with a hacksaw to form 90º corners – mitre cut fixing arm.

Position: True to line and level. Smooth continuous lines.

Fabrication: Obtained from a specialist metal fabricating company. The metal should be regularly perforated on the vertical face to allow drainage, with drainage holes being 3mm-5mm maximum diameter. The top leading edge should be folded fully or at a right angle by a minimum of 20mm to eliminate the sharp edge.

Horizontal leg

  • Warm/Cold roof system - To be 200mm wide with 60mm diameter holes positioned and cut centrally along the fixing arm at a rate of 6/m.
  • Inverted roof system - To be 200mm wide. Only the vertical section needs to be perforated Height: To be as landscaping build-up.

Installation:

  • Warm/Cold roof system - The retention trims must be secured in place using the specified Bauder capping sheet/waterproofing strips/flashing pieces (1000mm x 200mm size), bonded to the surface of the horizontal leg and set at intervals of 400mm between flashing pieces. The main capping sheet/membrane/waterproofing must be overlapped by a minimum of 100mm.
  • Inverted roof system - The retention trims should be loose laid over the insulation and vapour permeable membrane layers. We recommend that he retention trim pieces should be fixed together to form a frame, either welded or mechanically connected for added stability of the frame. The horizontal leg must be retained and ballasted by the drainage/water storage board and subsequent landscaping. Please note that these retention angles are not recommended for landscaping retention at open perimeter edges, as the trim will be loose laid (not fixed) and will not provide sufficient security.

Hard edge (minimum 300mm width): The retention trims should be used in conjunction with the pebble vegetation barrier/hard edge.

Precautionary note: when cutting metal, please ensure that appropriate tools and personal protection equipment are used.

- Retention Angle (supplied by others) - used behind a waterproofed castellated retention batten & perimeters/top of the slope (when Bauder Trims are not sufficient in height).

Purpose designed aluminium or stainless-steel perimeter retention angles, used to contain landscaping or pebble ballast when interfacing soft or hard landscaping. These retention angles are to be supplied and fabricated by others to the landscape architect’s requirements and incorporating drainage perforations where required.

Cutting: Neat, accurate and without spalling.

Junctions: Cut with a hacksaw to form 90º corners – mitre cut fixing arm.

Position: True to line and level. Smooth continuous lines.

Fabrication: Obtained from a specialist metal fabricating company. The metal should be regularly perforated on the vertical face to allow drainage, with drainage holes being 3mm-5mm maximum diameter. The top leading edge should be folded fully or at a right angle by a minimum of 20mm to eliminate the sharp edge.

Horizontal leg: For the base of the slope, in conjunction with the castellated retention battens - To be 200mm wide. Only the vertical section needs to be perforated.

For open perimeters/top of the slope - To be 200mm wide with 60mm diameter holes positioned and cut centrally along the fixing arm at a rate of 6/Linear metre.

Height: To be as landscaping build-up.

Installation: At the base of the slope, in conjunction with the castellated retention battens - The retention trims must be securely placed in front of the drainage gaps in the castellated retention kerb.

The angle should be installed loose over the specified protection layer.

At open perimeters/top of the slope - The retention trims must be secured in place using the specified Bauder capping sheet/Waterproofing strips/flashing pieces (1000mm x 200mm size), bonded to the surface of the horizontal leg and set at intervals of 400mm between flashing pieces. The main capping sheet/membrane/waterproofing must be overlapped by a minimum of 100mm. Hard edge (minimum 300mm width): The retention trims should be used in conjunction with the pebble vegetation barrier/hard edge.

Precautionary note: when cutting metal, please ensure that appropriate tools and personal protection equipment are used.

Vegetation Barrier/Hard Edge/Fire Break (Optional for Intensive Soft Landscaped Roofs):- Vegetation Barrier (supplied by others):

For slopes below 10° only. (Roof slopes 10° upwards a hard edge should be supplied using paving slabs as an alternative to 20/40mm round river washed pebbles).

A vegetation barrier must be provided to all perimeters, abutments penetrations including protrusions i.e. man-safe posts etc. We recommend 20/40mm rounded river washed pebbles. Stones/aggregates with sharp edges must not be used i.e. flint.

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

  • Minimum 300mm but increasing to 500mm at vertical walls with opening windows or doors or to abutments with opening rooflights.
  • Every 40m, there is a 30mm 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.
  • Vegetation barrier removal or reduction of the recommended width: Pebble vegetation barriers function as a fire break between potentially flammable dry vegetation and abutting construction materials that are also potentially flammable, to prevent fire spreading. These can be seen as an aesthetic issue for smaller green/blue roof areas and for this reason some clients/designers choose to reduce this width or otherwise remove the barrier altogether.

The current barrier guidelines are set by the GRO codes of practice that Bauder follows and promotes. These are guidelines and not currently a legal requirement under British Standards or Building Regulations. However, not following these guidelines may affect an insurance claim in the unlikely event of a fire. Consequently, Bauder Ltd cannot accept liability for issues arising from non-compliance with the current GRO guidelines.

- Irrigation (supplied by others):

Bauder recommend provision is made for an irrigation system to any substrate based green roof. This should be in accordance with the client’s requirements and the Landscape Architects/Designers guidance and advice.

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