GRP Advanced Roofing Systems

The material used in our GRP roofing has so many excellent qualities that it has for years been used to create boats, baths and even racing cars and aeroplanes. Now it has been developed so it can be used for your roofing needs – with attractive and enduring results.

Sentinel GRP is a long-term, leak-free and affordable system for roofs of any shape and size – from extensions, porches and garages to balconies, bay windows and summer houses. As a specially developed resin system that accommodates everyday structural expansion and contraction it can be moulded and shaped into even the most complex of shapes.

GRP stands for Glassfibre Reinforced Plastic, more usually known as fibreglass. It’s an amazingly strong and robust material – with seven times the flexural strength of steel! Even so, it is extremely lightweight with excellent high-energy absorption properties. That’s why it is already extensively used for refurbishment and new roofs by architects, local authorities and major building contractors throughout the UK.

All components are designed, manufactured, tested and guaranteed to excellently work together to provide a seamless super-tough roof that’s completely watertight. It’s a quality roofing system that you can do yourself because it’s been designed as a DIY roofing product rather than a professional builders’ product. As such, it requires no blow torches or live flames.

We offer Sentinel GRP roofing at the best price available, and it comes with a 15-year guarantee.

GRP roofing is:

  • Durable
  • Attractive
  • Cost-effective
  • Maintenance-free
  • Seamless
  • Leak-free
  • Lightweight & flexible
  • Strong
  • Versatile – from small domestic to large commercial
  • Works for complex shapes
  • Stormproof
  • Impact resistant
  • Heat & fire resistant
  • Frost-proof
  • With an architectural finish