Synonymous with premium performance and ideal for small to medium-sized domestic projects requiring an extra tough, durable and highly impact-resistant finish.

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The Next Generation of GRP Roofing

The 185 GRP system is an exceptionally tough and hard-wearing fibreglass membrane that has been delivering unrivalled waterproof performance for over 40 years. Compared to other fibreglass systems, the 185 GRP System offers an attractive glossier finish that has been proven to last for decades.

The 185 GRP system is always applied to Polyroof Approved OSB3, making it ideal for strip-and-replace residential or smaller work projects. When used for trafficked areas, options are available for an economical and durable anti-slip solution. The 185 GRP System carries BBA certification with a certified lifespan of at least 25 years and is supported by Polyroof’s trusted accredited system guarantees.

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185 GRP System Gallery

Key Features

  • Superior Finish
    The 185 GRP System has a glossy, high aesthetic anthracite grey finish that maintains its appearance extremely well over the duration of its minimum 25 year lifespan.
  • Extra Tough & Hardwearing
    One of the toughest waterproofing solutions on the market – ideal for new deck applications to create a hardwearing finish.
  • Ideal for Small Domestic Works
    An ideal solution for residential applications needing durable, flexible waterproofing. Also ideal for bay windows, cills, and dormas.
  • Superior Durability
    BBA certified (Cert No. 91/2604) with a designated lifespan of at least 25 years.
  • RapidCure Technology
    Cured and can be walked on 30 – 60 minutes after application, allowing the full system to be installed in hours rather than days.
  • Suitable for Completely Flat (Zero Fall) Applications
    185 GRP System is BBA Certified 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 like many other systems.

185 GRP System Applications

The 185 system is always applied to Polyroof approved OSB3 boards.

Usually used on roofs involving strip-and-replace works.

Ideal for any new build timber roof applications.

Ideal for use as part of a warm roof design.

Available with a BBA certified extra tough anti-slip finish for trafficked areas.

System Colour

Anthracite Grey

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