What is it?

OptiGRP is a cold-applied fibreglass system with a seamless and flexible, weatherproof finish that is resistant to water, heat and frost. GRP (Glass Reinforced Plastic) is extremely durable, lightweight and flexible with the capability to mould to any shape.

OptiGRP has been developed to produce the perfect all-weather protection for your flat roof and is easy to install for both domestic and commercial projects.

What can it be used for?

OptiGRP is a very popular system for waterproofing due to its unlimited design potential and longevity.

This system is particularly suitable for:

  • Flat roofs
  • Pitched roofs
  • Balconies and walkways
  • New construction
  • Refurbishment projects


  • Certified Lifespan in excess of 25 years

  • Available Guarantees of 15, 20 & 25 years

  • NHBC Projects Approved

  • Installed All Year Round

  • Holds Broof T1 Fire classification

  • Long Term UV Resistance

  • Excellent Bonding to most roofing substrates

  • Respects the environment during production and installation

  • No naked flames required

  • Allows pedestrian traffic once cured

  • Provide a modern and aesthetically pleasing roof finish

  • Technical reports and CAD Drawings

  • BBA Approved.

OptiGRP can only be used by a trained approved contractor.