185 GRP System - Fibreglass Membrane Roofing System

Glass reinforced plastic (GRP) roofing system with premium performance and BBA certification.

The system is always applied to a Polyroof approved OSB3 deck and detailed with Polyroof Pre-formed GRP Trims. The system carries a minimum durability rating of 25 years, providing an exceptionally tough and hard-wearing membrane.

It is suitable for small to medium sized roofs up to 100 m² (for larger roofs, see Polyroof Protec & Protec Evolve), and is available in anthracite grey. The highly impact-resistant finish can withstand regular foot traffic without additional protection, and when combined with an anti-slip finish, the 185 GRP System is a suitable choice for balconies and walkways. The 185 GRP System is supported by Polyroof’s Approved System Guarantees for up to 20 years.

Features and benefits:

• Polyroof’s 185 GRP system has been on the market since 1984, offering proven, durable waterproofing for thousands of clients across the UK.
• Polyroof have incorporated their flexible resin expertise into the formula of 185 GRP, creating a membrane that resists cracking or splitting more than traditional GRP.
• Tough impact resistant GRP perimeter trims.
• Attractive anthracite grey finish.
• Rapid rainfall resistance during application.
• A tough waterproofing solution – ideal for new deck applications to create a hardwearing finish.
• PolyGrit can be mixed into the topcoat to create a hardwearing and economical anti-slip solution for balconies.
• BBA certified (Cert No. 91/2604) with a designated lifespan of at least 25 years.
• Can be walked on 30–60 minutes after application, allowing the full system to be installed in hours rather than days.
• BBA approved for use in zero fall applications in accordance with BBA 91/2604. The membrane is impervious to standing water and will not suffer from premature degradation.