Excel® Warm Roof Single Layer System

A premium range of high performance reinforced bitumen waterproofing membranes, manufactured with the unique Alpa® polymeric binder, providing a durable, technologically advanced RBM system suitable for single/multi layer application, zero fall, fully or partially bonded, mechanically fixed or flame free. Excel has shown exceptional ageing characteristics with laboratory accelerated ageing tests determining a service life in excess of 60 years. The Excel system includes Air and Vapour Control Layers (AVCLs), tapered or flat board thermal insulation, underlayers and robust, versatile capsheets self finished in a choice of colours to suit roof designs of differing complexity.

  • Excel is BBA certified, accepted by all third party building warranty providers such as LABC and NHBC and complies fully with The Building Regulations and all relevant British and harmonised European standards.
  • Approved Document B: Fire Safety compliant
  • ISO 9001 & 14001 accredited.

General information


A minimum 50 year design life expectancy (BS 8747), available with a 30 year guarantee

Uniclass 2015

Ss_30_40_30_72 Reinforced bitumen membrane warm roof covering systemsPrimary
Specification data - Reinforced bitumen membrane warm roof covering systems
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