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Description

Bauder Intensive Roof System, Hard Landscaping, permeable paving.

This system is ideal for hard landscaping intensive green roof applications such as paving where the anticipated loading is moderate to high. (i.e. courtyard foot traffic and driveways for car access)

Key features:

  • Designed with a compressive strength of up to 1000 kN/m² when using Bauder DSE40/ DSE60 Drainage and Protection Layer.
  • Creates low-maintenance accessible spaces.
  • Versatile visual finish.
  • Finished paved surface can support free-standing planter held vegetation.

Benefits:

  • Assists in maximizing the building's potential.
  • Creates a moveable scheme if free-standing planters are utilized.
  • Can be low maintenance.

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 Roof System, Hard Landscaping, permeable paving.

Waterproofing

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

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

Bauderflex Green Roof System (specified in J41)

Bauderflex 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

For higher levels of trafficking. HDPE 40mm depth water storage and multi-directional drainage layer. Roofs pitched between 0-5°.

Bauder DSE60 Drainage and Protection Layer

For heavy trafficking and higher weight loads. HDPE 60mm depth water storage and multi-directional drainage layer. Roofs pitched between 0-5°. Must always be infilled.

Board fill layer

2–5 mm crushed gravel (supplied by others, to DSE40)

2-5mm crushed and washed angular gravel aggregate (no fines) supplied by others as granular fill.

Bauder Mineral Drain (to DSE60)

Lightweight, single-size crushed limestone stone.

Filter layer

Bauder Filter Fleece

Fine mesh PP geotextile used to separate the DSE60 infilled with Bauder Mineral drain and the bedding layer.

Surface finish

Paving supplied by others

Maximum Slope

Accessories

See 'Options' below and insert requirements.

Standard product features

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

Bedding layer (supplied by others):

(To be installed over the Bauder Filter Fleece where Bauder Mineral Drain has been used as a board fill).

2-5mm crushed and washed angular gravel aggregate (no fines) supplied by others.

Apply evenly over to provide a level finish. Depth to be a minimum of 30mm, but not exceeding 50mm. Provision should be made for containing the bedding layer at all abutments to ensure that loose gravel particles do not drop into the area beneath the drainage layer, where they may wash into the outlets i.e. use perforated aluminium retention angles or abutment kerbs.

Perimeter edge and abutment restraint: It is important that provision is made to support and retain the board fill and aggregate bedding layer within the construction at abutments, by adopting one or both of the following methods (dependent upon the nature of the construction)…

1.Concrete kerb bedded in concrete off of the drainage board layer or perforated stainless steel or aluminium angle bolted together and inserted below the drainage layer.

2.Angles made from aluminium should be 1.5 –2.5mm or stainless steel 1 - 1.5mm thickness should be used. The opposite side of the angle should be supported by a 20/40mm pebble vegetation barrier of approximately the same depth as the landscape construction.

If the roof fall is zero°, it is advisable to create the falls within the bedding layer, so rainwater run-off is directed to the outlets/drainage point.

Paving (supplied by others):

Paving slabs/suitable pavers to be laid on to the specified bedding layer, as specified by the architect / landscape designer and strictly in accordance with their specific recommendations regarding the layout in keeping with the landscape design.

Setting out: Minimize cutting.

Joints: Left open for drainage. The size of the joints to be in accordance with the client’s requirements. These open joints may be controlled by using either proprietary spacers or using suitable strips of cut tile of the correct thickness or similar, to control the gap size.

- Joint Width: 8mm

- Perimeter upstands: 8mm.

Slabs must be level and stable.

Product Options

Protection layer:

- Bauder FSM 600 Protection Mat/ 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: 6 mm.
  • Coverage: 12.5 m².
  • Weight (saturated/ dry): 4.3 kg/m².
  • Material: 100% recycled shredded rubber.

Drainage layer:

- Bauder DSE40 Drainage and Protection Layer:

Ideal for higher levels of trafficking.

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: 1.04 x 2.03 m (2.1 m²).
  • Nominal wall thickness: 2 mm.
  • Depth: 40 mm.
  • Coverage: 2m² (approx
  • Water storage (when empty): 13.5L.
  • Filling capacity: 21L.
  • Compressive strength: 80KN/m2 empty / >1000KN/m2 aggregate filled.
  • Weight (2mm-5mm gravel and water filled): circa 40kg/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:

Ideal for heavy trafficking and higher weight loads.

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

  • 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: 33l/m2.
  • Compressive strength: 100 kN/m² empty/ >1000 kN/m² filled.
  • Weight (saturated and filled with Bauder Mineral Drain): 51.9 kg/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.

Board Fill:

- 2mm-5 mm crushed gravel (supplied by others):

2mm-5mm crushed and washed angular gravel aggregate (no fines) supplied by others as granular fill.

Applied directly to the water storage/ drainage board, filling the profile cups to a level flush with the upper crowns of the board and eliminating any hollows. Allowance should be made for any settlement that may occur.

Depending on size and access of the project, the specified granular fill can be supplied by the manufacturer by various methods i.e. big bags, tipper truck or via a silo lorry pumping directly onto the roof area.

Prior to costing this element of the installation the 'Bauder Approved Contractor' should contact Bauder Ltd so that they may help to advice on the best solution, specific to any contract.

- Bauder Mineral Drain:

Lightweight, single size stone used in Bauder DSE60/DSE40 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.

Applied directly to the water storage/ drainage board, filling the cellular troughs to a level flush with the upper crowns of the board and eliminating any hollows. Allowance should be made for any settlement that may occur.

Depending on size and access of the project, the specified granular fill can be supplied by the manufacturer by various methods i.e. big bags, tipper truck or via a silo lorry pumping directly onto the roof area.

Prior to costing this element of the installation the 'Bauder Approved Contractor' should contact Bauder Ltd so that they may help to advice on the best solution, specific to any contract.

  • 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.

Filter layer:

- Bauder Filter Fleece:

Fine mesh PP geotextile. Bauder Filter Fleece is used here to separate the board fill from the bedding layer. It prevents fine material from being washed out of the bedding layer into the board fill/drainage layer.

Loose laid over the drainage layer. Fleece joints should be overlapped 150mm. Fleece should not be taken over the top of drainage outlets.

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

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

Accessories:

- Bauder Linear Drain KH60 System:

Bauder galvanised steel Linear Drainage System, is used to allow free drainage in key locations.The KH60 Drainage System is designed to be used around doorways, thresholds and changes in landscape finishes. The system is available with stop ends and connecting clips.

Normally installed onto the protection mat directly above waterproofing. Linear drains connectors to clip one length to another.

Drainage channels: Bauder KH60 linear drainage channel, channel sections, integral grille plate.

  • Material: galvanized steel.
  • Thickness: 1.5 mm.
  • Height: 60mm (including legs total height range – 75mm-120mm)
  • Width: 150mm
  • Length: 1000mm
  • Supply form: 1m lengths

Connecting the drainage channels: Individual sections of Bauder KH60 channel should be joined using Bauder Connection Clips, with Bauder Stop Ends used where the drain terminates at abutments.

Installation:

On Gravel Support Bedding: The channel is to be fully supported on free draining crushed aggregate i.e. Bauder mineral drain. For levelling purposes, the Bauder KH60 channel sections are to be laid on a 30mm deep 2mm-5mm crushed granular bedding layer and levelled as required finish flush with adjacent paving. Please note that the crushed aggregate materials below the linear drainage channels will have to be contained to prevent loss beneath the related drainage board product - either contained with Bauder Filter Fleece or retained using a perforated non-corroding metal support angle.Please note that these units are not suitable for supporting the weight of vehicular traffic.

- Bauder GA250/ GA400 Rainwater Access Cover:

Required for maintenance access to rainwater outlets. Features removable grille plate, gravel guard surround and adjustable feet that are suitable for most situations.

  • Material: galvanized steel.
  • Thickness: varies.
  • Size: 250 x 250 mm/ 400 x 400 mm.
  • Height adjustment: 80–110 mm.
  • Supply form: Single cover

Literature
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