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Bauderflex Green Roof System Reinforced Bitumen Membrane Inverted Roof Covering System Self-Adhered (with Torch-On Capping Sheet)

Verified by manufacturer 5 months ago

Bauder Ltd Third party certifications:
  • CCPI System

    CCPI System

    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

Two-layer, self-adhered, inverted roof bitumen membrane waterproofing system suitable for new build and refurbishment applications, incorporating torch-on bitumen root resistant capping sheet.

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Application

Suitable for a variety of applications on both new build and refurbishment projects and can be used in cold and inverted roof scenarios.

Description

Bauderflex Green inverted roof system, incorporating torch-on bitumen root resistant capping sheet with self-adhered bitumen underlayer, and inverted insulation.

Bauderflex Green Roof System is suitable for a variety of applications on both new build and refurbishment projects and can be used in cold and inverted roof scenarios.

See BBA certification 10/4744. Bauderflex Green can meet current UK Building Regulations Part B for external fire protection.

 

Plus points:

  • 4.2 mm modified elastomeric bitumen cap sheet.
  • Polyester fleece reinforcement.
  • Safe2Torch design.
  • Range of guarantee packages to fulfil cover requirements for the project (dependent on system/ product selection). For more information contact Bauder's technical department for a sample guarantee outlining cover level, terms and conditions.
  • Standards: BS EN 13707 Reinforced Bitumen Membrane Sheets for Roof Waterproofing.


Verified properties:

  • CCPI Verification 0007700016/1025: This systems CCPI mark provides accuracy of data delivering assurance to specifiers.
  • BBA Certificate 10/4744.
  • Fire properties - membranes deemed "unrestricted" in certain circumstances as categorised in BBA Certificate.
  • Service life > 30 years as stated in BBA certificate.
  • EPD Certification on system components: Bitumen membranes.

General information

Color

Green

Material

Bitumen

Shape

Square

Rectangle

Warranty description

-

Manufacturer guidance

A range of guarantee options are available. Please contact Bauder for more information.

Uniclass

Ss_30_40_30_71 Reinforced bitumen membrane inverted roof covering systemsPrimary

CAWS

J41/120 Built-up reinforced bitumen membrane inverted roof covering

J41/14 Reinforced bitumen membrane inverted roof covering

Specification data - Reinforced bitumen membrane inverted roof covering systems

Preparation

-

Horizontal work

Activator-Primer (Canister) APR01 – Black.

Guidance for specification option:

Synthetic rubber resin-based primer, developed to provide the necessary preparation of substrates prior to the installation of self-adhesive and torch-applied membranes. The spray application offers improved film thickness speed of application (by up to 50% over roller applied products) and quick drying in a matter of minutes.

  • Coverage: Approx. 96 g/m² (300 mm wide spray one coat, 192 g/m² two coats). Two coats may be required for very porous substrates.
  • Application temperature: +5 to +30°C.
  • Drying time (at 10°C): 5–10 minutes.
  • Colour: Black.
  • Recoat time if left exposed: Four hours.
  • Suitable substrates: Oriented strand board (OSB); plywood; timber; metal; Bauder self-adhesive underlayers; existing asphalt and bitumen membranes; polyisocyanurate (PIR) insulation.
  • Non-suitable substrates: Concrete decks (new & refurb), Mica finished surfaces (e.g. KSD FBS); Laminated paper-foil faced insulation; expanded polystyrene (EPS) or extruded polystyrene (XPS) insulations; for bonding BauderROCK or mineral wool insulation; for bonding BauderGLAS or cellular glass insulation; copper; thermoplastic waterproofing membranes.


SA Bonding Primer.

Guidance for specification option:

For Self-Adhesive membranes to Concrete.

Bauder SA Bonding Primer is a synthetic rubber-based primer applied by a roller or brush. Specially formulated to increase the bond strength of Bauder self-adhesive bitumen membranes to a wide range of substrates, including timber, concrete, brick, metal and most plastics.

  • Coverage: Approx. 200-300 g/m² (depending on substrate porosity).
  • Application temperature: +5 to +30°C.
  • Drying time: Approx.30 mins, dependent upon ambient temperature and material porosity.
  • Colour: Black.
  • Recoat time if left exposed: Four hours.
  • Suitable substrates: timber, concrete, brick, metal and most plastics.

Manufacturer guidance

Contact manufacturer to confirm substrate suitability if required.

Skirtings and vertical work

As 'Horizontal work'.

Waterproof covering

-

First layer

-

Type

BauderTEC Sprint DUO.

Guidance for specification option:

Elastomer bitumen self-adhesive underlayer with variable technology for lap sealing. The two side laps of the membrane have differing finishes. On one lap there is a self-adhesive finish, whist the opposite lap has a glass fleece. This allows the membrane to be sealed with either a gas torch or hot air welder.

  • Width: 1 m.
  • Length: 15 m.
  • Thickness: 2 mm.
  • Weight: 2.5 kg/m².
  • Surface: Top: PE foil; Bottom: release film (cold self-adhesive bitumen underside)
  • Reinforcement: 200 g/m² glass lattice with glass fleece combination.
  • Cold bending test: Top -30°C; Bottom -30°C.
  • Softening point: >100°C.
  • Tensile strength: Length >1000 N/50mm; transverse >1000 N/50mm.
  • Elongation at break: Length >2%; transverse >2%.

Attachment

Self-adhered.

Top layer

-

Type

BauderPLANT E 42.

Guidance for specification option:

Elastomer-bitumen torch on capping sheet with root-resistance according to FLL. The product features a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture.

  • Width: 1 m.
  • Length: 7.5 m.
  • Thickness: 4.2 mm.
  • Weight: 5 kg/m².
  • Surface: Top: Green slate mineral chippings; Bottom: Thermofusible polyethylene.
  • Reinforcement: 250 g/m² Polyester fleece.
  • Cold bending test: -36°C.
  • Softening point: >120°C.
  • Tensile strength: Length >1000 N/50 mm; transverse >1000 N/50mm.
  • Elongation at break: Length >45%; transverse >45%.

Attachment

Torch applied.

Detail work

-

Flashings

Bauder GRP Trim.

Guidance for specification option:

GRP roof edge trim for use with Bauder bituminous roof systems. Available colours of either grey or black and a choice of profiles to suit the requirements of most projects.

Bauder GRP Water Check Trim.

Guidance for specification option:

GRP water check trim to be used on parapets and perimeter kerbs wider than 200 mm – must not be used on its own as a check kerb. Available in black only.

Bauder Aluminium Termination Bar.

Guidance for specification option:

Natural finish aluminium alternative to a lead counterflashing for use at upstand details to give protection to the top edge of the waterproofing. It should be restricted to use on upstands where a chase cannot be cut into the wall.

Bauder GRP Termination Bar.

Guidance for specification option:

Black glass reinforced plastic (GRP) alternative to a lead counterflashing for use at upstand details to give protection to the top edge of the waterproofing. It should be restricted to use on upstands where a chase cannot be cut into the wall.

Skirtings and upstands

Bauder LiquiFIBRE Detailing Kit.

Guidance for specification option:

Fast curing waterproofing resin containing fibre reinforcement that can be used for detailing awkward shapes or inaccessible areas where using LiquiDETAIL is impractical. PMMA-based resin that requires a catalyst and is solvent, isocyanate and halogen free.

Bauder LiquiDETAIL.

Guidance for specification option:

Cold liquid applied fast curing waterproofing resin that can be used on upstands and details. PMMA-based resin that requires the addition of catalyst to trigger curing and is solvent, isocyanate and halogen free.

Welted drips

Required.

Guidance for specification option:

Insert requirements.

Not required.

Cover strips

Required.

Guidance for specification option:

Insert requirements.

Not required.

Ancillary items

Required.

Guidance for specification option:

Insert requirements.

Not required.

Insulation

-

Type

Bauder JFRI PREMIUM+ Inverted Insulation.

Guidance for specification option:

Insert required thickness, 85–240 mm in 5 mm increments.

 

Designed specifically for inverted roof applications.

  • Type: High-performance, rigid expanded polystyrene (EPS) insulation boards.
  • Facing: Unfaced.
  • Colour: Grey.
  • Nominal weight: 30 kg/m³.
  • Standard board size: 1215 x 1215 mm (including 15 mm rebate).
  • Thermal conductivity: Declared 0.031 W/m·K; design 0.031 W/m·K (may vary, dependent on thickness specified).
  • Design load compressive strength: 0.20 N/mm² with 10% nominal compression.
  • Ozone depletion potential (ODP): Zero.
  • Global warming potential (GWP): <5 kg CO2 eq/kg.
  • Recyclability: 100%.


Consult manufacturer's literature for further details.

Bauder JFRI PREMIUM (300) Inverted Insulation.

Guidance for specification option:

Insert required thickness, 90–240 mm in 5 mm increments.

 

Designed specifically for inverted roof applications.

  • Type: High-performance, rigid expanded polystyrene (EPS) insulation boards.
  • Facing: Unfaced.
  • Colour: White.
  • Weight: 40 kg/m³.
  • Standard board size: 1215 x 1215 mm (including 15 mm rebate).
  • Thermal conductivity: Declared 0.033 W/m·K; design 0.033–0.035 W/m·K (may vary, dependent on thickness specified and application).
  • Design load compressive strength: 0.30 N/mm² with 10% nominal compression.
  • Ozone depletion potential (ODP): Zero.
  • Global warming potential (GWP): <5 kg CO2 eq/kg.
  • Recyclability: 100%.


Consult manufacturer's literature for further details.

Bauder XPS (300) Inverted Flatboard.

Guidance for specification option:

Insert required thickness.

 

  • Type: High performance rigid extruded polystyrene insulation boards.
  • Facing: Smooth self-finished.
  • Density: 30 kg/m³.
  • Standard board size: 1250 x 600 mm.
  • Board thickness: 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 100 mm, 120 mm, 140 mm.
  • Thermal conductivity: 30 mm: 0.034 W/m·K; 40–50 mm: 0.035 W/m·K. >50 mm: 0.036 W/m·K.
  • Compressive strength: 0.30 N/mm².
  • Ozone depletion potential (ODP): Zero.
  • Global warming potential (GWP): <1 kg CO2 eq/kg.


Bauder XPS (500) Inverted Flatboard.

Guidance for specification option:

Insert required thickness.

 

  • Type: High performance rigid extruded polystyrene insulation boards.
  • Facing: Smooth self-finished.
  • Density: 35 kg/m³.
  • Standard board size: 1250 x 600 mm.
  • Board thickness: 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 100 mm, 120 mm, 140 mm.
  • Thermal conductivity: 40–60 mm: 0.034 W/m·K; >60 mm: 0.036 W/m·K.
  • Compressive strength: 0.50 N/mm².
  • Ozone depletion potential (ODP): Zero.
  • Global warming potential (GWP): <1 kg CO2 eq/kg.


Consult manufacturer's literature for further details (Not for use in Intensive Landscaped Roofs).

BauderGLAS Inverted Insulation (Flatboard).

Guidance for specification option:

Insert required thickness.

 

  • Type: Cellular glass insulation boards.
  • Facing: Pre-applied inorganic coating.
  • Density: 100 kg/m³.
  • Standard board size: 600 x 450 mm.
  • Board thickness: 100 mm, 140 mm, 160 mm, 200 mm (120 mm, 180 mm made to order, min qty 100m2).
  • Thermal conductivity: 0.043 W/m·K.
  • Compressive strength: CS ≥ 400 kPa.
  • Ozone depletion potential (ODP): The insulation is totally inorganic, contains no Ozone depleting propellants, flame resistant additives or binders. Without VOC or other harmful substances.


Attachment

Loose laid (and suitably ballasted).

Guidance for specification option:

  • Setting out: Loose lay insulation directly over the capping sheet to brick pattern with staggered joints. Minimize cutting and avoid small pieces at perimeters and penetrations. Dependent upon the total thickness required, it may be necessary to construct the insulation using two layers of board. The manufacturer/supplier can advise on the available combination options.
  • Joints: Butt together.
  • Loading over inverted insulation (minimum): Ballast (landscaping) should be installed onto the Bauder WFRL Membrane (Water Flow Reducing Layer) to a minimum depth required to achieve a permanent minimum 80 kg/m² and load which prevents wind uplift and flotation of the insulation in high winds and/or heavy rainfall.
  • Additional loading at perimeters: On high buildings in more exposed areas, wind uplift may be a problem and in these instances paving slab ballast must be considered. Paving slabs should be a minimum of 50 mm thick. The slabs should be laid on paving slab supports of minimum 175 mm diameter (or equivalent base area).
  • All final details must to be confirmed with Bauder before proceeding.

Ballast

-

Manufacturer guidance

Insert requirements - Consult Bauder for information.

Please refer to Bauder Extensive / Biodiverse / Intensive / Hard Landscape Landscaping systems.


Loading over inverted insulation (minimum): Ballast (landscaping) should be installed onto the Bauder WFRL Membrane (Water Flow Reducing Layer) to a minimum depth required to achieve a permanent minimum 80 kg/m² and load which prevents wind uplift and flotation of the insulation in high winds and/or heavy rainfall.

System accessories

Not required.

Bauder lightning conductors.

Guidance for specification option:

Lightning conductor clips are a specially designed secure clip that allows for movement.

  • Bauder Lightning conductor - Type 4: Polyvinyl chloride (PVC) coated or bare conductor.


Bauder rainwater outlets.

Guidance for specification option:

Bauder has a range of insulated or stainless-steel rainwater outlets.

The insulated outlets can be used for maintaining thermal continuity at drainage points. Suitable for warm, cold and inverted roof construction, the high thermal value of the rigid foam body prevents condensation from forming on the underside of the outlet.

Designed for use when connecting to conventional drainage systems, with excellent flow rate performance and is suitable for both new build and refurbishment projects. Outlets are included in the Bauder waterproofing system guarantee as they are integrated components.

Flow rate figures (where applicable) are based on BS EN 12056:3:2000, typically taken using a 35 mm header of water including leaf grille:

 

  • Bauder Bitumen Compact Vertical Outlet DN100: Insulated internal outlet, 6.1 L/s.
  • Bauder Bitumen Vertical Outlet DN70: Insulated internal outlet, 7.1 L/s.
  • Bauder Bitumen Vertical Outlet DN150: Insulated internal outlet, 7.2 L/s.
  • Bauder Bitumen Letterbox Parapet Outlet DN 205 including stainless-steel leaf guard, 2.02 L/s.
  • Bauder Bitumen Parapet Outlet DN 100 including stainless-steel leaf guard, 1.06 L/s.
  • Bauder Bitumen Vertical Refurb Outlet DN70, designed to ensure the maximum flow rate of the existing downpipe is not exceeded.
  • Bauder Bitumen Vertical Refurb Outlet DN95, designed to ensure the maximum flow rate of the existing downpipe is not exceeded.
  • Bauder Bitumen Vertical Refurb Outlet DN145, designed to ensure the maximum flow rate of the existing downpipe is not exceeded.


Bauder rooflights/ glazing/ ventilation.

Guidance for specification option:

All these glazing products are fully compatible with the roof waterproofing systems. Consult manufacturer for details and insert requirements.

  • BauderDOME Rooflight.
  • Bauder Euroglaze Rooflight.
  • Bauder Special Modular Rooflight.
  • Bauder Continuous Rooflight.
  • Bauder Walk-on Rooflight.
  • Bauder Direct Glazing.
  • Bauder AOV.
  • Bauder Modular Link Glazing.
  • Bauder Structural Rooflight.
  • Bauder Fire Rated Rooflight.

Water Flow Reducing Layer/ Vapour Permeable Membrane

Bauder JFRI WFRL.

Guidance for specification option:

Flexible and breathable sheet of polypropylene strands randomly spun-bound together, supplied as part of the JFRI Inverted Insulation system to minimize water flow through and below the insulation, therefore improving thermal performance.

Supplied as part of the JFRI Inverted Insulation system to minimize water flow through and below the insulation.

  • Width: 3 m.
  • Length: 100 m.
  • Thickness: 0.45 mm.
  • Weight: 0.1 kg/m².
  • Colour: Black.


Bauder XPS WFRL.

Guidance for specification option:

Flexible and breathable geotextile membrane of polypropylene strands randomly spun-bound together, supplied as part of the Bauder XPS GG Inverted Insulation system to minimize water flow through and below the insulation, therefore improving thermal performance.

Supplied as part of the XPS GG Inverted Insulation system to minimize water flow through and below the insulation.

  • Width: 3 m.
  • Length: 100 m.
  • Thickness: 0.17 mm.
  • Weight: 0.06 kg/m².
  • Colour: White.

Sustainability data

Third party certifications

Third party certifications

CCPI System

CCPI System

Bauder Bauderflex-BauderflexGreen-CCPI

BBA Agrément Certificate

BBA Agrément Certificate

Certificate: Bauderflex Green Roof Systems 10/4744

EPD

EPD

Environmental Product Declaration - RBM

Literature

Bauder Activator-Primer (Canister) APR01 - black

Bauder Activator-Primer (Canister) APR01 - black

Bauder SA Bonding Primer - Technical Data Sheet

Bauder SA Bonding Primer - Technical Data Sheet

BauderTEC Sprint DUO Roofing membrane

BauderTEC Sprint DUO Roofing membrane

BauderPLANT E 42 Roofing membrane

BauderPLANT E 42 Roofing membrane

Bauder LiquiFIBRE

Bauder LiquiFIBRE

Bauder LiquiDETAIL

Bauder LiquiDETAIL

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