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Bauderflex Inverted Roof System - Torch Applied

Verified by manufacturer 6 days ago

Bauder Ltd Third party certifications:
  • EPD

    EPD

    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • CCPI System

    CCPI System

    Certificate type

Two-layer, torch-applied, inverted roof, bitumen membrane waterproofing system, suitable for both new build and refurbishment applications and used primarily on concrete decks.

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 +44 (0)1473 257671 Website

Application

Suitable for both new build and refurbishment applications, with option of using a root-resistant capping sheet for green roof scenarios.

Description

Bitumen inverted roof system, incorporating inverted insulation and torch-on bitumen capping sheet, with self-adhered bitumen underlayer. Bauderflex Roof System is suitable for a variety of applications on both new build and refurbishment projects and can be used in warm, cold and inverted roof scenarios. Includes the option of using a root resistant cap sheet, making this waterproofing system suitable for green roof situations. For green roof situations, see Bauderflex Green.

 

Bauder Inverted Roof systems should be ballasted/ landscaped to prevent wind uplift and/ or floatation. Type, thickness, weight of landscaping should be agreed with manufacturer per bespoke project basis.

 

Plus Points:

  • Option of using a root-resistant capping sheet for green roof scenarios.
  • 4.2 mm SBS-modified elastomeric bitumen cap sheet with polyester fleece reinforcement.
  • Range of guarantee packages to fulfil cover requirements for project (dependant of 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.


Assessments and verifications:

  • CCPI Assessment 0007700012/1025: 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 categorized in the BBA certificate
  • Service life >30 years as stated in BBA certificate.
  • EPD Certification on system components:
  • Bitumen membranes.

General information

Color

Black

Finish

Mineral

Material

Bitumen

Guidance for specification option:

Elastomer modified bitumen.

Shape

Square

Rectangle

Length

Bespoke

Width

Bespoke

Warranty description

-

Manufacturer guidance

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, consult manufacturer.

Uniclass

Ss_30_40_30_71 Reinforced bitumen membrane inverted roof covering systemsPrimary

CAWS

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

Product range

Built-Up Bituminous Systems

Specification data - Reinforced bitumen membrane inverted roof covering systems

Preparation

-

Horizontal work

Bauder Quick Dry Bitumen Primer.

Guidance for specification option:

A bitumen-based primer applied by a roller or brush. 'Quick dry' is in comparison to standard bitumen primers. Specially formulated to increase the bond strength of Bauder torch-on bitumen membranes and Bauder Hot Melt waterproofing.

  • Coverage: 4-8 L/m² (depending on substrate porosity).
  • Application temperature: +5 to +25°C. Where the temperature falls outside of this, refer to Summer & Winter Advice documents from Bauder.
  • Drying time: 3-6 hours depending on porosity and weather conditions.
  • Colour: black.
  • Recoat time: four hours (if left exposed).
  • Suitable substrates: concrete; lightweight concrete or cementitious materials; metal; brick.
  • Non-suitable substrates: oriented strand board (OSB); plywood; timber; metal; Bauder self-adhesive underlayers; existing asphalt and bitumen membranes; polyisocyanurate (PIR) insulation.

Manufacturer guidance

Contact manufacturer to confirm substrate suitability if required.

Skirtings and vertical work

As 'Horizontal work'.

Waterproof covering

-

First layer

-

Type

Bauder EGV 35 TF.

Guidance for specification option:

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/50mm (length and diagonal).
  • Heat stability: +100°C.
  • Cold bending test: -10°C.
  • Elongation at break: ≥2% (length and diagonal).

Manufacturer guidance

Contact manufacturer to confirm substrate suitability if required.

Attachment

Torch applied.

Top layer

-

Type

Bauder PYE PV 200 S4.

Guidance for specification option:

Torch-applied, 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/50mm; transverse >800 N/50mm.
  • Elongation at break: length >35%; transverse >35%.

BauderFLEX K4E, Brown.

Guidance for specification option:

Elastomer bitumen torch-on capping sheet. The product features a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation. Product has been fire tested as part of a system assembly and this information can be obtained in the Fire Test Report available from Bauder Ltd.

  • Width: 1 m.
  • Length: 7.5 m.
  • Thickness: 4.2 mm.
  • Weight: 5 kg/m².
  • 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/50mm; transverse >800 N/50mm.
  • Elongation at break: length >40%; transverse >40%.

BauderFLEX K4E, Charcoal Grey.

Guidance for specification option:

Elastomer bitumen torch-on capping sheet. The product features a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation. Product has been fire tested as part of a system assembly and this information can be obtained in the Fire Test Report available from Bauder Ltd.

  • Width: 1 m.
  • Length: 7.5 m.
  • Thickness: 4.2 mm.
  • Weight: 5.5 kg/m².
  • 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/50mm; transverse >800 N/50mm.
  • Elongation at break: length >40%; transverse >40%.

BauderFLEX K4E, Grey Slate.

Guidance for specification option:

Elastomer bitumen torch-on capping sheet. The product features a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation. Product has been fire tested as part of a system assembly and this information can be obtained in the Fire Test Report available from Bauder Ltd.

  • Width: 1 m.
  • Length: 7.5 m.
  • Thickness: 4.2 mm.
  • Weight: 5 kg/m².
  • 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/50mm; transverse >800 N/50mm.
  • Elongation at break: length >40%; transverse >40%.

Manufacturer guidance

Not for use with green roof systems.

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

Not required.

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-free, isocyanate-free 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-free, isocyanate-free 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: 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.
  • 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: 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.
  • Recyclability: 100%.


Consult manufacturer's literature for further details.

Bauder XPS (300) Inverted Flatboard.

Guidance for specification option:

Insert required thickness.

 

  • Type: 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.

Bauder XPS (500) Inverted Flatboard.

Guidance for specification option:

Insert required thickness.

 

  • Type: 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.

BauderGLAS Inverted Insulation Flatboard.

Guidance for specification option:

Insert required thickness.


  • Type: Cellular glass with pre-applied inorganic coating on the topside. Both the core material and the coating have an A1 reaction to fire classification and are therefore non-combustible. Where more than 1 layer of insulation is required, BauderGLAS Slab T3+ will be used as the base layer.
  • Facing: pre-applied inorganic coating.
  • Density: 100 kg/m².
  • Standard board size: 600 x 450 mm.
  • Board thickness: 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, 200 mm.
  • Thermal conductivity: 0.043 W/m·K.
  • Compressive strength: 0.4 N/mm².

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.

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 clips – 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 BRE Certified (report no. HPR357-303748) high thermal value of the rigid foam body prevents condensation from forming on the underside of the outlet body.

Designed for use when connecting to conventional drainage systems 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 Bitumen Parapet ‘Tell-Tale’ Overflow DN50, designed to be used in conjunction with other roof drainage outlets to ensure that there is no water ingress into the build and that the structural load of the roof is not exceeded and provides a visible warning that the roof is holding excessive water. 

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.
  • BauderFLATGLASS 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.

  • 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 Inverted Insulation system to minimize water flow through and below the insulation, therefore improving thermal performance.

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

Surfacing layer

Bauder Supported Paving.

Guidance for specification option:

A range of pedestal support systems designed to meet the exacting standards of finishing levels demanded when specifying open-jointed paving and decking finishes for hard landscaped intensive rooftops.

  • Bauder Slope Correcting (DPH) Pedestal: fully adjustable pedestal with slope corrector, achieves depths from 17–1070 mm.
  • Bauder Adjustable (PB) Pedestal: adjustable pedestal, achieves depths from 18–955 mm.
  • Bauder Non-Combustible (NC) Pedestal: all-metal, non-combustible, with integrated slope corrector, achieves depths from 42–282 mm.

Bauder Supported Decking.

Guidance for specification option:

A range of pedestal support systems designed to meet the exacting standards of finishing levels demanded when specifying open-jointed paving and decking finishes for hard landscaped intensive rooftops.

  • Bauder Slope Correcting (DPH) Pedestal: fully adjustable pedestal with slope corrector and available kit support for joist battens, achieves depths from 17–1070 mm.
  • Bauder Adjustable (PB) Pedestal: adjustable pedestal with available joist holder accessory for decking, achieves depths from 18–955 mm.
  • Bauder Non-Combustible (NC) Pedestal: all-metal, non-combustible, with integrated slope corrector and non-combustible Bauder Ali-Rail for decking, achieves depths from 42–282 mm.

Ballast (by others).

Guidance for specification option:

20–40 mm rounded washed pebbles.

Sustainability data

Material

Bitumen

Guidance for specification option:

Elastomer modified bitumen.

Third party certifications

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
 -

2

IFC
 -

1

Third party certifications

EPD

EPD

Environmental Product Declaration - RBM

BBA Agrément Certificate

BBA Agrément Certificate

Certificate: Bauderflex Systems 10/4744

CCPI System

CCPI System

Bauder Bauderflex-BauderflexGreen-CCPI

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