STRONGHOLD GRP Roofing Systems

Stronghold GRP is one of the oldest and most respected GRP manufacturers within the roofing industry, with over 25 years experience in the sector. Stronghold GRP product range is certified to the industry standard for flat roof fire protection BROOF(t4)

Choose a quality and reliable product that is guaranteed to last for years

Chosen by experienced installers who value consistency and performance every single time. Built for professionals. Available to all.

Quality & reliability

Stronghold GRP roofing systems will provide a seamless, waterproof and highly durable substrate that can be applied to any flat roof application including balconies, warm roofs, green roofs, and with a finish built to last.

  • Do Stronghold offer any guarantees

    Yes, the Stronghold GRP System comes with a 25 year materials guarantee.

  • Can Stronghold withstand foot traffic

    Yes, the Stronghold GRP system is specifically engineered to withstand high volume footfall. It creates a flexible and high impact resistant surface to ensure durability to withstand all kinds of foot traffic. Additionally, Stronghold GRP when combined with slate granules can achieve a non slip slip surface for walkways and balconies.

  • Is Stronghold GRP fire resistant?

    Yes, the Stronghold GRP system features a BROOF (t4) Fire Rating. This is the highest fire safety rating for roof systems under European standard BS EN 13501-5.