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National Federation of Roofing Contractors - Bowline Roofing and Western Counties Roofing

Alwitra


Evalon

Made of Eva-Terpolymer, fully bitumen compatible and root resistant. The Evalon membrane has been proven worldwide in all climates consistently over 30 years, can be recycled, and is supported by the highest standards - ISO 9000, DIN and BBA.

Fire resistant
The membrane is self-extinguishing and complies with all regulations for fire resistance

Other features:

  • Pollution resistant
  • Promotes good solar reflectivity
  • Available in a range of colours: black, brown, terracotta, army green, pale green, beige, slate grey, light grey and white
  • 1.2mm thick
  • Comes in 25m lengths up to 2.05m wide
  • Guaranteed for 20 years
  • Does not trap moisture or blister
  • Quick and easy to install by heat- or solvent-welding
  • Particularly suitable for overlaying metal clad or asbestos roofs

Evalon - SA

Made of Eva-Terpolymer, fully bitumen compatible and root resistant, Evalon-SA is the first light-coloured polymeric single ply membrane with a self-adhesive, bitumen free coating. The adhesive is based on EVA/SBS for excellent adhesion to all typical roofing substrates. Compensation channels in adhesive allow vapour/pressure diffusion
Supported by the highest standards - ISO 9000, DIN and BBA
Fire resistant
The membrane is cold applied so there is no risk

Other features:

  • Excellent bonding strength
  • Light colours promote optimum light and heat reflectivity
  • Ideal for pitched roofs allowing clean simple installation
  • 2.0mm thick, including adhesive
  • Comes in 15m lengths, 1.05m wide
  • Safe usage in fire risk areas - chemical / petrochemical etc, combustible roofs, schools, hospitals where open flames are of risk
  • Guaranteed for 20 years
  • Does not trap moisture or blister
  • Particularly suitable for overlaying pitched metal clad or asbestos roofs

Evalastic

The proven environmentally friendly alternative
Made of Ethylene-Propylene-Copolymer (EPDM/PP synthetic rubber) fully bitumen compatible and root resistant. First introduced in 1986 and already showing excellent long term performance. Particularly good with regard to chemical resistance, low temperature flexibility and outstanding weather resistance. Guaranteed free from halogens, bitumen, chlorine and plasticisers
Supported by the highest standards - ISO 9001, DIN and EN.
Fire resistant
The membrane complies with all current regulations for fire resistance

Other features:

  • Pollution resistant
  • Compatible with all roof insulating substrates
  • Seamless seam welding using simple hot air procedure
  • Can be recycled
  • Promotes water vapour permeability
  • 1.2mm thick, 25m lengths
  • Colour - light grey
  • Suitable for all roofing applications: new build, refurbishment, warm deck, inverted roofs, roof gardens and industrial roofs
  • Guaranteed for 20 years
  • Does not trap moisture or blister
  • Quick and easy to install - hot air welding
  • Particularly suitable for overlaying metal clad or asbestos roofs