Bituminous Systems - Bauder Total Roof System PLUS

When to specify...

Bauder Total Roof System PLUS is designed for use in both refurbishment and new build projects particularly when long life-span and high durability are required. As with all our bitumen membrane systems, BTRS PLUS incorporates torch-free and safe to torch installation which is specified when roof details are located on or adjacent to combustible construction materials. Our BTRS PLUS system meets current UK Building Regulations Part B for external fire protection.


1 BauderKARAT cap sheet 5.2mm thick dual modified APP/SBS, torch applied bitumen cap sheet.
2 BauderTEC KSA DUO 35 underlayer Self-adhesive elastomeric bitumen underlayer.
3  PIR FA-TE insulation or PIR FA tapered (laid to falls) Bauder PIR FA-TE Insulation is a rigid urethane foam insulation faced on both sides with aluminium foil. 


BauderPIR FA tapered insulation provides falls to a roof instead of incorporating into structure.
BauderTEC KSD Mica Tear resistant, aluminium lined self-adhesive bitumen air & vapour control layer.

Key features

  • Cap sheet with tensile strength up to 1450N/50mm incorporating 300g/m² glass/polyester composite reinforcement
  • Utilising an APP top side and an SBS underside, the membrane can withstand climatic extremes of over 150⁰C variation
  • Patented self-adhesive DUO product
  • Expandable graphite fire retardant prevents spread of flame
  • Outstanding guarantee package offer


  • Heavy duty, robust and extremely tough
  • Resistant to European climatic conditions
  • Membrane resists impact and tearing
  • Satisfies requirements of Part B of Building Regulations
  • Softer bitumen SBS underside which aids speed of installation by circa 10%  

Approvals, certification and guarantee

  • Comprehensive range of guarantees with high level value of cover
  • Will be added to BBA Certificate 10/4744 for Bauder Total 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
  • Fire classification BROOF(t4) to BS EN 13501-5 tested to TS 1187 for external fire exposure to roofs and deemed ‘unrestricted’ (low vulnerability) and suitable for use on any part of a roof.

Environmental credentials

  • Environmental Product Declarations (EPD)
  • The Eco Platform accreditiation is recognised by the BRE as valid and transferrable environmental documentation towards obtaining BREEAM credits within their assessment process for BREEAM UK New Construction 2018
  • Bitumen Membranes - S-P-00414
  • PU Insulation - Aluminium Facing - EPD - IVP-20140207-IBE1-EN
  • BauderROCK Insulation – EPD according to EN 15804 and ISO 14025
  • Manufacturing offcuts of waste bituminous membranes are shredded and   recycled back in to production.
  • Manufacturing offcuts of PIR are shredded and recycled for use in hand cleansers   and decking material.
  • Our manufacturing factories operate an Environmental Management System that has been certified to be in accordance with ISO 14001 2015 and ISO 50001 2011 for Energy Management

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 ►

Safe2Torch industry initiativeBauder Torch-Free Detailing Methods 

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

Downloads and other information

Cap sheet colours

The BauderKARAT Cap Sheet is available in charcoal grey


Technical Excerpt

Life expectancy: > 50 years
Loading: up to 2000Kg/m²
Reinforcement: 300g/m² polyesterglass composite

APP modified bitumen, used for the upper coating, offers increased resistance to ultraviolet radiation as well as improved weathering that contributes to a longer service life.

The SBS modified elastomeric bitumen, used on the underside, provides outstanding flexibiity to cope with climatic extremes. 

Technical downloads

ISO 9001:2015 ►
ISO 14001:2015 ►
Bauder GmbH ISO 50001:2011 ►
Torch-free detailing brochure ►