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.

185 System BBA Certificate