Bauder Intensive Roof System, Hard Landscaping, Heavily Trafficked Access

Bauder Ltd

Bauder Intensive Roof System, Hard Landscaping, heavy pedestrian foot trafficked access, installed over a compacted hard-core sub bedding layer.

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Description

Bauder Intensive Roof System, Hard Landscaping, heavy pedestrian foot trafficked access, installed over a compacted hard-core sub bedding layer.

This type of sub-bedding layer allows for installation of various surface finishes, such as, MUGA, Resin Bound, Artificial Grass and Play Top surface.

When the roof structure allows, the hard landscaping finishes can be designed to allow for driveway access for slow moving vehicles such as car and cherry pickers.

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.
  • 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 Green Roof System, Hard Landscaping, heavily trafficked access.

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 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 roadways, 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

Bauder Mineral Drain

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

DTP Type 1 (supplied by others)

DTP Type 3 (supplied by others)

Bedding layer

2-5mm crushed gravel (supplied by others)

for paving finish only.

Bedding layer as instructed by surface finish supplier (supplied by others)

Surface finish

Paving (supplied by others)

Refer NBS Section Q26.

Resin Bound / Bonded Surfacing (supplied in installed by others)

Refer NBS Section Q26.

Artificial Grass (supplied by others)

Refer NBS Section Q26.

Play Top Surface (supplied by others)

Refer NBS Section Q26.

Maximum Slope

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

Product Options

Protection layer:

- Bauder 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: 15m
  • Thickness: 8mm.
  • Coverage: 30 m².
  • Weight (saturated): 7.16 kg/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: 2 m² (approximate).
  • Weight (compacted Type1 hardcore filled): cira 44kg/m2
  • Filling capacity: 21L.
  • Compressive strength: 80KN/m2 empty / >1000KN/m2 aggregate filled.
  • 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 are to 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: 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.
  • 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:

- 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.

- DTP Type 1/ DTP Type 3 compacted sub-base (supplied and installed by others).

Refer architects / structural engineer’s plans and specification.

Installed directly into the Bauder Drainage and Protection Layer to a minimum depth of 150mm.

The depth of cover material above the board profile to be a minimum of 100mm following compaction.

The sub-base is to be compacted using mechanical compaction and adequate containment provided at all abutments or perimeters in the form of concrete kerbs bedded on a ‘no fines’ concrete with support haunching built directly off the profiled drainage board. Please refer to the architects / structural engineer’s detailed plans and specification.

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

Bedding layer (supplied by others) – required for paving finish only:

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

Surfacing:

- 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.

- Resin Bound / Bonded Surfacing

Resin bound / bonded surfacing, supplied and installed by others. As per landscape designer’s / architects’ design/requirements. Refer NBS Section Q26.

- MUGA

Multi-use games area finish, supplied and installed by others. As per landscape designer’s / architects’ design/requirements. Refer NBS Section Q26.

- Artificial Grass

Artificial grass finish, supplied and installed by others. As per landscape designer’s / architects’ design/requirements. Refer NBS Section Q26.

- Rubber Crumb Play Top Surface

Rubber crumb play top surface finish, supplied and installed by others. As per landscape designer’s / architects’ design/requirements. Refer NBS Section Q26.

- Asphalt Road Surface

Asphalt road surface finish, supplied and installed by others. As per landscape designer’s / architects’ design/requirements. Refer suitable NBS Section.

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