Flat Roofs

Rayner Roofing are registered installers of alwitra Evalon® superior quality single-ply waterproofing membranes and their extensive supporting range of products.

Rayner Roofing only supply and fit Evalon single-ply membranes due to their outstanding properties and characteristics. Evalon membranes are:

Flat roofs Rayner Builders
  • fully bitumen compatible
  • resistant to plant root and moss penetration
  • easy and quick to install by hot air
  • can be laid fully adhered, mechanically fixed, loose laid and ballasted
  • suitable for flat, pitched and curved roofs
  • long-term reliability through manual welding to create seamless coverings
  • high thermal and mechanical resistance
  • available in a range of colours

alwitra Evalon® membranes are complimented with an extensive range of supporting products for bespoke roof specifications. These include roof edge trims, aluminium capping and profiles, walk-way matting, outlets and roof lights .


Did you know?

Every domestic Evalon membrane installation under 50m² receives a 20 year product warranty as standard.

All commercial installations benefit from a free independent installation inspection as standard with a range of product warranty durations upon request.