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EXCEL/SPOT

BBA APPROVED TWO LAYER PARTIALLY SELF ADHERED SYSTEM WITH THERMAL INSULATION ON REINFORCED CONCRETE ROOF DECK

EXCEL is a unique robust polyester reinforced Alpa®-mix polymer modified bitumen cap sheet with exceptional performance and ageing characteristics. BBA Agrément Certificate No. 94/3037C applies.
HYRANGER SPOT is a self adhesive / heat activated polyester reinforced polymer (SBS) modified base layer. The under surface is coated with a self adhesive compound with exceptional adhesive characteristics and the surface is finished with a macro perforated film for safety reasons.
  • Info on applications
    Applications
  • Info on performance
    Performance
  • Info on roof deck suitability
    Roof deck
  • Info on insulation
    Insulation
  • Info on surface options
    Surface options
  • Info on installation
    Installation

Applications


  A tried and tested traditional roofing system using modern self adhesive membranes for safe application.
  Suitable for use as a two layer fully adhered system on insulated concrete, timber and metal decks. As an alternative EXCEL can be laid as a partially bonded single layer directly on to the thermal insulation, apply to Axter for a detailed specification.
  Suitable for use on new build or renovation projects.

Performance


  A minimum 50 year design life expectancy (BS 8747), available with a 25 year GOLDSHIELD guarantee.
  High melt point and low temperature flexibility ensures stability in all ambient temperatures.
  Stabilised polyester reinforcement ensures stability with no shrinkage, high tensile strength and excellent point loading characteristics.
  Indicative BRE Green Guide 2008 rating: D/C.
See the full details of the BRE Green Guide methodology.

Note - The environmental rankings are based on Life Cycle Assessments using BRE's Environmental Profiles Methodology 2008 and refer to the complete system build up including structural elements, thermal insulation, waterproofing and protection.

Roof deck


  Reinforced concrete laid in accordance with BS 8217:2005.
  Axter does not recommend the use of screeds to create falls, preferring instead the use of tapered thermal insulation. If screeds are to be specified then they should be installed in accordance with BS 6229:2003 and be allowed to dry out before laying any reinforced bitumen membrane roofing.

Insulation


  Suitable for laying over a range of thermal insulation options including HYTHERM PIR and HYTHERM high density EPS flat and tapered boards.

Surface options


  EXCEL is a self protected membrane available in a choice of six colours. An aluminium covering (ARMALU) is also available.

Installation


  Fully adhered vapour control layer.
  Thermal insulation attachment with cold applied adhesive.
  Self adhesive base layer with torch applied cap sheet.
  Installed by accredited Axtershield Installers.
  Comprehensive long term guarantees covering product, system design and installation.
  Requires minimal routine maintenance, see Axter's recommended Maintenance Schedule.
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