Alwitra Single Ply Membranes

Alwitra single ply membrane is one of the most sought after products on the market today, with huge benefits from the product such as a life span of 40+ years complete guarantee of any leaks if installed by a credible installer and the ability to fabricate around pretty much anything with Alwitra’s extensive catalogue of membranes its Evalon VSK membrane a huge favourite of ours with over 10 years specialising in the installation of this membrane and a manufacturers backing from ICB Waterproofing we are registered and approved installers taking on a range of projects from Airports, Shopping centres, High Rise apartment blocks, down to your every day kitchen flat roof extension.

With the option of installing straight to a ply deck cold roof or creating a warm roof build up with VCL (Vapour Control Layer) and insulation. Alwitra & ALB Roofing Developments ltd have every aspect of single ply roofing covered.

Single Ply Membrane

The use of Single Ply Membranes is an established method of waterproofing flat roof areas. Different options are available depending on the specific requirements of the particular application, from ecological concerns to economy, (budget), from exposed roofs to garden roofs. Our Single ply membranes are supplied in 1.05m, 1.55m and 2.05m rolls and can be adhered, mechanically fixed or ballasted into flat roof.

Key Benefits:

  • Single layer
  • quick installation
  • Great flexibility
  • UV Resistant
  • No naked flame -our single ply membranes are heat welded with hot air
  • Compatible with bitumen
  • Suitable for new build and refurbishment projects
Evalon V

A superior quality, fleece-backed synthetic waterproofing membrane which is fully compatible with bitumen and most types of insulation board.

Evalon V is a vinyl-ethylene-terpolymer (VET), comprising polyvinyl-chloride (PVC) and ethylene-vinyl-acetate (EVA), which results in an extremely stable product, free from potentially harmful volatile plasticisers. With excellent chemical resistance, it provides a reliable protective membrane against inclement weather to ensure buildings remain protected for years to come.


  • Hard wearing
  • Superior quality
  • 100% recyclable
  • Excellent thermal and mechanical properties
  • Available in a range of colours
  • Suitable for all flat roof configurations
  • Compatible with Bitumen
  • Approved for Green Roofs
Evalon VSK
A fleece-backed, synthetic single ply membrane with a bitumen and solvent-free self-adhesive coating.

Evalon VSK membranes are part of our long-term proven alwitra roofing system. After laying, the fleece backing also reduces stress and strain on the system. The membranes are produced with an un-coated welding edge on one side, to ensure a homogeneous welding in the seam area is guaranteed.


  • Self-adhesive underside coating
  • Allows diffusion
  • High adhesive strength
  • Quick Installation
  • Ideal for steep slope roof areas
  • No fire hazard; cold applied
  • Approved for Green Roofs
Standing seam detail to give texture and definition to the roof surface. Replicates the look of traditional zinc or copper roofs perfectly… Consult ICB (International Construction Bureau) Ltd for range and to obtain samples.