Bauder Total Roof System

Our long-established Bauder Total Roof System (BTRS) incorporates elastomeric bitumen membranes for strength and durability on flat roofs.

BTRS achieves a CCPI mark which recognises that any claims made about it have been independently assessed across 11 clauses, providing greater clarity by offering improved product information. This gives specifiers confidence in the knowledge that they will have unambiguous information when deciding which of our systems is best for their new build or refurbishment project.
Enhance with:
■ Green roofs   ■ Blue roofs   ■ Solar PV   ■ Biosolar PV

When to specify

BTRS is a fully bonded system suitable for new build and refurbishment projects within warm and inverted roof constructions with a choice of insulations; also used as a system to overlay an existing roof that is thermally reliable and still meets current standards.

The Bauder K5K 5.2mm cap sheet comes in three mineral colour finishes and there is a selection of underlayers and AVCLs to suit specific project requirements. The system uses BauderPLANT E when a green roof is specified to form the Bauder Total Green Roof System (BTGRS).

Plus points

■□ 5.2mm SBS modified elastomeric bitumen cap sheet with polyester fleece reinforcement.
■□ System incorporates patented DUO membranes to minimise the use of flame.
■□ Safe2Torch detailing design.
■□ Comprehensive guarantees to meet project needs.

Verified properties

CCPI Verification 0007700017/1025​:
■□  This systems CCPI mark provides accuracy of data delivering assurance to specifiers. 

BBA Certificate 10/4744:
■□ Fire classification BROOF(t4) to BS EN 13501-5 tested to TS 1187 test 4 for external fire exposure on defined permutations of product build up.
■□ Fire properties – membranes deemed “unrestricted” in certain circumstances as categorised in BBA certificate.
■□ Service life > 35 years

EPD Certification:
■□ Bitumen Membranes.
■□ PU Insulation - Aluminium Facing
■□ BauderROCK Insulation.
■□ BauderGLAS Insulation.


  Function Product name Thickness
1 Cap sheet Bauder K5K (charcoal grey)
BauderPLANT E (6kg/m2)
5.2 6.5
2 Underlayer BauderTEC KSA DUO 3 3.5
3 Insulation (0.15) BauderPIR FA-TE (shown) 140  4.2
  Warm roof insulation options BauderPIR FA tapered
BauderROCK flatboard
BauderROCK tapered
variable variable
  Inverted roof insulation options BauderJFRI
variable variable
Bauder PU Tin Adhesive nominal 0.16
4 Air and vapour
control layer
BauderTEC KSD FBS 2.5 2.5
  Primer Varies depending upon
substrate type - please refer
to specification
nominal nominal
System build-up 150.7 16.86
In-depth and up-to-date product specific technical data is available for each element within a system.
Download from our technical-centre

Cap sheet colours

The cap sheet colours available for our BTRS system are grey slate, charcoal grey, brown and green.


  Grey slate       Charcoal grey       Brown           Plant-E (for green roofs)

Approvals, certification and guarantee

■□ Comprehensive range of guarantee packages to fulfil cover requirements for the project (dependant on system/product
      selection). For more information contact our technical department for a sample guarantee outlining cover level, terms
      and conditions.
■□ CCPI Verification Number 0007700017/1025 for Bauder Total Roof System and Bauder Total Green Roof System.
■□ BBA Certificate 10/4744 for Bauder Total Roof System and Bauder Total Green Roof System.
■□ BS EN 13707 - Reinforced Bitumen Membrane Sheets Compliant.
■□ S5, P5 in BS8747:2007 UK guide for reinforced bitumen membranes.
■□ BS EN ISO 140 - 18:2006 system tested for sound intensity on metal deck.
View certifications here ►

Installation and maintenance

The quality and experience of the installing operative is paramount to ensuring a successful project. Bauder Approved Contractors are the only people fully trained and certified to install our products. They provide the necessary experience that our exceptional guarantee demands.
Go to approved contractor information ►
Go to maintenance advice ►


Bauder torch-free detailing methods

Safe2Torch industry initiativeOur torch-free detail design specifically delivers secure safe application techniques in the vicinity of combustible construction materials located on, or connected to, the roof. This includes timber substrates or upstands; abutments to cladding, roof tiles, slates or thatch; or even debris such as dry leaf material that is at risk of ignition.  The application methods meet NFRC Guidance Document 'Safe2Torch'.
Go to Torch-Free Detailing ►

Contact us today about your project

Each project is unique in its requirements, but we have case studies and examples of our work available for you to look at. If you are looking for a bituminous membrane roof system, then get in touch with our team to discuss your project’s individual needs.