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GRP Roofing Kit 13m2

Kit Contents:

1 x 70mm x 21mm Consolidating Paddle Roller

1 x 225mm x 21mm Consolidating Paddle Roller

1 x 3″ Fluffy Roller + 2 x Refill

1 x 6″ Fluffy Roller + 2 x Refill

2 x 2″ Laminating Brushes

2 x 4″ Laminating Brushes

2 x 10L Buckets

1 x 1kg Hardener in dispensing bottle

1 x 290ml MS Polymer Sealant/Adhesive

1 x Sentinel Premium Resin 20kg

1 x Sentinel Premium Topcoat 10kg

1 x 450gsm Chopped Strand Matting 15m roll



Extensions, Garages, Dormers, Porches, Balconies, Bay Windows, Summer Houses, Stairs, Green Roofs, Non Slip Walkways, Architechtural Projects, Bespoke Detail, Simulated Lead Finishing.

Features & Benefits

Lightweight yet strong: GRP roofing resin combines the lightweight properties of plastic with the strength of glass fibers, resulting in a roofing material that is both lightweight and robust, reducing the load on the roof structure while maintaining durability.

Flexible and adaptable: GRP roofing resin can be applied to various roof substrates, including complex shapes and contours, making it suitable for unconventional roof designs or challenging roofing projects.

Crack bridging properties: GRP roofing resin has excellent crack bridging properties, which means it can bridge gaps or cracks in the roof surface, preventing water from seeping through and providing enhanced waterproofing performance.

Resilient to extreme weather conditions: GRP roofing resin is designed to withstand a wide range of weather conditions, including high temperatures, freezing temperatures, UV radiation, and heavy rainfall, ensuring long-term performance in diverse climates.

Low maintenance: GRP roofing resin requires minimal maintenance once installed, reducing the need for costly and time-consuming repairs or replacements, saving time and resources in the long run.

Customizable aesthetics: GRP roofing resin can be pigmented to various colors, allowing for creative customization of the roof’s appearance, enhancing the overall aesthetic appeal of the building.

Extended roof lifespan: GRP roofing resin forms a seamless and durable membrane that can protect the roof from water damage, UV radiation, and other environmental factors, extending the lifespan of the roof and reducing the need for premature replacements.

Cost-effective solution: GRP roofing resin can be a cost-effective option in the long run, as it requires minimal maintenance and can provide long-term performance, reducing overall lifecycle costs.

Versatile application: GRP roofing resin can be applied to a wide variety of roof substrates, making it suitable for various roofing applications, including flat roofs, pitched roofs, and vertical surfaces.

Enhanced protection: GRP roofing resin provides a seamless and waterproof membrane that offers reliable protection against water ingress, reducing the risk of leaks and associated damage to the underlying structure.

GRP Materials Calculator


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.