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Bauderflex Reinforced Bitumen Membrane Warm Roof Covering System Torch Applied

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

Bauder Ltd

Bitumen warm roof system, incorporating torch-on bitumen capping sheet, with torch-on bitumen underlayer, insulation and torch-on bitumen air and vapour control layer (AVCL).

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+44 (0)1473 257671 www.bauder.co.uk
Description

Two-layer, torch-applied, warm roof, bitumen membrane waterproofing system, suitable for both new build and refurbishment applications.

Key features:

  • Capping sheets with tensile strength of up to 800 N/50 mm.
  • Withstands climatic extremes of over 100⁰C variation.
  • Expandable graphite fire-retardant prevents spread of flame.

Benefits:

  • Heavy-duty, robust and extremely tough.
  • Service life in excess of 30 years, as stated in BBA certificate 10/4744.
  • Resistant to European climatic conditions.
  • Membrane resists impact and tearing.
  • Can satisfy requirements of part B of Building Regulations.

General information
Specification data - Reinforced bitumen membrane warm roof covering systems
Product Reference

Bauderflex Reinforced Bitumen Membrane Warm Roof Covering System Torch Applied

Primer

Bauder Quick Dry Bitumen Primer

Air and vapour control layer

Bauder EVA 35

Robust, torch-applied, styrene-butadiene-styrene (SBS)-modified bitumen, 3.5 mm thick.

Insulation -
Type

BauderGLAS Flatboard

Can only be used with PU Insulation Adhesive – twin cartridge or mechanically fixed.

BauderGLAS Tapered

Can only be used with PU Insulation Adhesive – twin cartridge or mechanically fixed.

BauderROCK Flatboard

Can only be used with PU Insulation Adhesive – twin cartridge or mechanically fixed.

BauderVIP 60 mm Flatboard

BauderVIP 80 mm Flatboard

PIR FA Tapered board 1:60

PIR FA-TE Flatboard

Thickness

Insert requirement.

Adhesive

Foil Contact Adhesive – Canister

PU Insulation Adhesive – Tin

Not for foil-to-foil applications (e.g. FA-TE to FA-TE).

PU Insulation Adhesive – Twin cartridge

Underlayer

Bauder EGV3.5

Torch-applied, styrene-butadiene-styrene (SBS)-modified bitumen, 3.5 mm thick.

Capping sheet

K4E, Brown

Torch-applied, high-performance, elastomeric bitumen, mineral-finished capping sheet, 4.2 mm thick. Not for use with green roof systems.

K4E, Charcoal Grey

Torch-applied, high-performance, elastomeric bitumen, mineral-finished capping sheet, 4.2 mm thick. Not for use with green roof systems.

K4E, Natural Slate

Torch-applied, high-performance, elastomeric bitumen, mineral-finished capping sheet, 4.2 mm thick. Not for use with green roof systems.

X4S

Torch-applied, high-performance, elastomeric bitumen, mica-finished capping sheet, 4.2 mm thick. No UV protection, only suitable for applications where it is totally covered; not for exposed roofs. Not for use with green roof systems.

Accessories

See 'Options' below and insert requirements.

Standard product features

Primer:

Contact Bauder to confirm substrate suitability if required.

Air and vapour control layer:

- Bauder EVA 35:

A robust, torch-applied, styrene-butadiene-styrene (SBS) elastomeric bitumen air and vapour control layer, featuring a tear-resistant aluminium foil lining for vapour impermeability. Once installed, the product provides a temporary waterproofing layer, allowing internal works to be carried out immediately.

  • Width: 1 m.
  • Length: 8 m.
  • Thickness: 3.5 mm.
  • Weight: 4.5 kg/m².
  • Reinforcement: polyester-coated aluminium foil and 60 g/m² glass fleece.
  • Tensile strength: ≥400 N/50 mm (length and diagonal).
  • Heat stability: +70°C.
  • Cold bending test: -15°C.
  • Elongation at break: ≥2% (length and diagonal).

Underlayer:

- Bauder EGV3.5:

A 3.5 mm-thick, torch-applied elastomeric bitumen underlayer with glass fibre reinforcement.

  • Width: 1 m.
  • Length: 8 m.
  • Thickness: 3.5 mm.
  • Surface finish: top: mica; bottom: thermofusible polyethylene.
  • Weight: 4.7 kg/m².
  • Reinforcement: 100 g/m² glass lattice.
  • Tensile strength: ≥500 N/50 mm (length and diagonal).
  • Heat stability: +100°C.
  • Cold bending test: -10°C.
  • Elongation at break: ≥2% (length and diagonal).

Product Options

Insulation:

- BauderGLAS Flatboard or Tapered:

Cellular glass insulation, suitable for projects that require a high level of compressive strength and/ or to be non-combustible.

  • Type: cellular glass flatboard or tapered insulation board.
  • Facing: glass tissue or none-faced (depending upon system).
  • Density: 100 kg/m³.
  • Board size: contact Bauder for options.
  • Thickness (Flatboard): 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 170 mm, 180 mm (also available in Tapered).
  • Thermal conductivity: 0.036 W/m·K (may vary, dependent on thickness specified).
  • Compressive strength: 0.5 N/mm².

- BauderROCK Flatboard or Tapered:

Mineral fibre insulation suitable for projects that require a high level of sound reduction, and/ or to be non-combustible, and have a zero GWP and ODP rating.

  • Type: dual-density mineral wool flatboard or tapered insulation board.
  • Facing: top: 300 g/m² glass fibre fleece; bottom: unfaced.
  • Density: 160 kg/m³.
  • Board size: 1200 x 1000 mm.
  • Board thickness (Flatboard): 60 mm, 85 mm, 105 mm, 115 mm, 150 mm, 170 mm, 185 mm (also available in Tapered).
  • Thermal conductivity: 0.039 W/m·K (may vary, dependent on thickness specified).
  • Compressive strength: >0.12 N/mm² (minimum 0.08 N/mm²).

- BauderVIP 60 mm Flatboard:

  • Type: vacuum insulation panel with pyrogenic silica vacuum core, 40 mm.
  • Facing: top: high-density PIR, 17 mm; bottom: rubber granulate, 3 mm.
  • Density: 13 kg/m².
  • Standard board sizes: 1000 x 1000 mm and 1000 x 500 mm.
  • Standard board thickness: 60 mm.
  • Thermal conductivity: 0.009 W/m·K.
  • Compressive strength: >0.12 N/mm².

- BauderVIP 80 mm Flatboard:

  • Type: vacuum insulation panel with pyrogenic silica vacuum core, 60 mm.
  • Facing: top: high-density PIR, 17 mm; bottom: rubber granulate, 3 mm.
  • Density: 17 kg/m².
  • Board sizes: 1000 x 1000 mm, 1000 x 500 mm.
  • Board thickness: 80 mm.
  • Thermal conductivity: 0.009 W/m·K.
  • Compressive strength: >0.12 N/mm².

- PIR FA Tapered board 1:60:

A range of tapered, closed cell, polyisocyanurate (PIR) insulation boards.

  • Type: rigid, closed cell, polyisocyanurate (PIR) roofboard: to BS EN 13165.
  • Facing: black aluminium foil to both faces.
  • Density: >30 kg/m³.
  • Standard board size: 1200 x 1200 mm.
  • Board thickness: contact Bauder for options.
  • Thermal conductivity: 0.022 W/m·K (may vary, dependent on thickness specified).
  • Compressive strength: >0.12 N/mm².
  • PIR index: >250 (extremely high dimensional stability).

- PIR FA-TE Flatboard:

A range of flat, closed cell, polyisocyanurate (PIR) insulation boards.

  • Type: rigid, closed cell, polyisocyanurate (PIR) roofboard: to BS EN 13165.
  • Facing: aluminium foil to both faces.
  • Density: >30 kg/m³.
  • Standard board size: 1200 x 600 mm.
  • Board thickness: 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, 120 mm, 140 mm, 160 mm.
  • Thermal conductivity: 0.022 W/m·K (may vary, dependent on thickness specified).
  • Compressive strength: >0.12 N/mm².
  • PIR index: >250 (extremely high dimensional stability).

Capping sheet:

- K4E:

Torch-applied, high-performance, elastomeric bitumen, mineral-finished capping sheet, 4.2 mm thick. Features a spun-bound polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation. Expandable graphite fire-retardant is also incorporated to reduce spread of flame, and the product is available in a choice of three colours.

  • Width: 1 m.
  • Length: 7.5 m.
  • Thickness: 4.2 mm.
  • Weight: 5.5 kg/m² (charcoal grey); 5 kg/m² (natural slate, Brown).
  • Surface: top mineral chippings.
  • Reinforcement: 250 g/m² spun-bound polyester.
  • Cold bending test: -30°C.
  • Softening point: >110°C.
  • Tensile strength: length >800 N/50 mm; transverse >800 N/50 mm.
  • Elongation at break: length >40%; transverse >40%.

- X4S:

Torch-applied, high-performance, elastomeric bitumen, mica-finished capping sheet, 4.2 mm thick. Features a spun-bound polyester reinforcement to allow the finished product to cope with structural movement without fracture. Its mica finish means that it has no integrated UV protection, therefore is only suitable for applications where it will be covered with hard landscaping, such as pavers or promenade tiles.

  • Width: 1 m.
  • Length: 10 m.
  • Thickness: 4.2 mm.
  • Weight: 5 kg/m².
  • Surface: top: mica; bottom: thermofusible polyethylene.
  • Reinforcement: 250 g/m² recycled, spun-bound polyester.
  • Cold bending test: -25°C.
  • Softening point: >100°C.
  • Tensile strength: length >800 N/50 mm; transverse >800 N/50 mm.
  • Elongation at break: length >35%; transverse >35%.

Accessories:

- Bauder GRP Trim:

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

- Bauder Aluminium Termination Bar:

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:

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.

- Bauder lightning conductors:

Lightning conductor clips are specially designed secure clips that allow for movement.

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

- Bauder insulated rainwater outlets:

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 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 Warm Roof Refurb Outlet DN63: insulated internal outlet, 6.1 L/s.
  • Bauder Bitumen Warm Roof Refurb Outlet DN90: insulated internal outlet, 5.7 L/s.
  • Bauder Bitumen Refurb Outlet DN95 – un-insulated straight-drop outlet, designed to ensure that the maximum flow rate of the existing downpipe is not exceeded.
  • Bauder Bitumen Refurb Outlet DN125 – un-insulated straight-drop outlet, designed to ensure that the maximum flow rate of the existing downpipe is not exceeded.
  • Bauder Insulated Parapet Outlet DN100, including pre-assembled pipe and dome grate: 0.6 L/s connected to external pipework; 0.7 L/s connected to external hopper.
  • Bauder Parapet Emergency Overflow Stainless Steel DN70: emergency overflow/ tell-tale.

- BauderSOLAR Photovoltaic Mounting System:

Bauder Flat roof PV mounting solution for framed solar modules. The mounting units are secured to the roof using a membrane-to-membrane welding technique. This installation method means that the roof is not compromised by penetrations for fixings; nor is it ballasted, which would add additional weight loading to the roof. Specifically designed to be installed on Bauder bituminous or single ply waterproofing systems, and provide a lightweight, low-risk and quick-to-install mounting solution for framed solar modules.

- Bauder LiquiFIBRE Detailing Kit:

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:

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.

- Bauder rooflights/ glazing/ ventilation:

All these glazing products are fully compatible with the roof waterproofing systems. Consult Bauder 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.

Literature
Third party certifications
  • Certificate: 10/4744
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