Specialists in Fibreglass Flat Roofing

Fibreglass GRP Flat Roofing Specialists

Strandek® Fibreglass (GRP) Flat Roofing

Our fibreglass system is a fully waterproof, long-lasting and robust flat roofing barrier.

Ideal for protecting all flat roofs, from domestic garages to factories, leisure centres and residential care homes, it has demonstrated exceptional durability lasting decades. 

Our systems have been installed around the UK for over 40 years - and they come with a 20-year Strandek® guarantee plus a 10-year insurance-backed guarantee

Call us today on 01633 250652 to find out more.

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glass fibre flat roofing

Recommended for

New builds, existing roofs and on roofing repairs & refurbishments. Ideal for installations where naked flame is undesirable and ingredients must be free from heavy metals.

Key features

  • 30+ year life expectancy: strong, durable, chemical-resistant
  • Rapid installation
  • Guarantees: 20-year Strandek® guarantee, 10-year IWA guarantee
  • High-performance Strandek® fibreglass GRP technology
  • Outstanding insulating properties
  • Designed to withstand footfall and equipment placement
  • Impact- and tear-resistant

OUR accreditations

strandek accreditations


  • All CE-marked materials
  • Fibreglass GRP waterproofing
  • Kingspan Thermaroof® insulation (Warm roof) or fibreglass quilt insulation (Cold roof)
  • OSB3 decking (FSC-certified)
  • Full RAL & BS colour range
  • Optional flame-retardant resin (BS Class 1 and 0 476 and 476)
  • Optional UV-resistant resin
  • Optional Strandek® Anti-Slip coating
  • Free of heavy metals


This system is compatible with our Strandek® Extensive Green Roof design. See more here.

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Case Studies

Why Choose Strandek®?

Since 1976, Strandek has provided high-quality glass fibre and other resin-based coatings to a range of satisfied customers in industry, government, construction and residential sectors alike. 


Our team have extensive experience and we pride ourselves on reliable workmanship and competitive pricing.

  • Unrivalled service
  • Exceptional quality 
  • Unmatched speed

Health & Safety

A strong health & safety ethic is the core of our business. We strive to maintain this through:

  • Best practices
  • Transparency & accountability
  • Rigorous training