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GRP (Glass Reinforced Polyester) roofing is a popular roofing solution that offers exceptional durability, weather resistance, and longevity. Made from a combination of polyester resin and chopped strand mat glass fibers, GRP roofing systems are lightweight, seamless, and easy to install. They're also highly flexible, making them an ideal choice for roofs with unusual shapes or contours
  • Durable and long-lasting

  • Lightweight

  • Seamless

  • Versatile

  • Low maintenance

GRP Materials Calculator

Please note Hardener Quantities will vary depending on weather conditions. 

Sentinel GRP Installation Guide
Our Sentinel GRP installation guide is a comprehensive step by step booklet including our full range of trims and an easy to follow estimating materials guide.

GRP Materials

Range of Trims

GRP Range of Tools

Contact Our Technical Team

Consult our technical support experts for personalised advice on your GRP Roofing Project.

01709 728150

Product Resources

All our product data sheets are available to download. D.O.P's and C.E documentation can be sent on request. We regularly update our literature with changes in industry regulations.