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Roofing resins are a popular solution for both residential and commercial roofing projects thanks to their durability, flexibility, and seamless waterproofing performance. From flat roofs to complex structures, resin roofing systems provide long‑lasting protection against weathering, UV exposure, and structural movement.
In this guide, we explain the main types of roofing resin—Original GRP, HPX, MultiFlex, Polyurethane, and Acrylic—and outline their key benefits, differences, and best‑use applications to help you choose the right system for your project.
GRP (Glass Reinforced Plastic) roofing resin is a polyester resin reinforced with glass fibres. It creates a seamless, highly durable waterproof membrane that is widely used in flat roofing systems.
HPX is a high‑performance hybrid roofing resin designed to deliver enhanced flexibility, tensile strength, and chemical resistance—making it ideal for more demanding or industrial environments.
MultiFlex is a flexible, user‑friendly roofing resin system designed to accommodate movement and complex roof details while remaining cost‑effective.
Polyurethane roofing resin forms a seamless, elastic membrane that adapts to temperature changes, helping prevent cracks, splits, and water ingress over time.
Acrylic roofing resin is a quick‑drying, water‑based coating that offers waterproofing and reflective properties to improve energy efficiency.
When selecting the best resin roofing system, consider the following factors:
Understanding the differences between GRP, HPX, MultiFlex, Polyurethane, and Acrylic roofing resins ensures you choose a solution that delivers long‑term protection, performance, and value for your specific roofing project.
GRP and Polyurethane roofing resins are the most commonly used for flat roofs due to their seamless waterproofing, durability, and long service life.
GRP is a rigid, glass‑reinforced system ideal for long‑term strength, while polyurethane is more flexible, making it better suited to roofs that experience movement or temperature changes.
Yes. MultiFlex and acrylic roofing resins are particularly suitable for DIY applications due to their ease of use and simple application methods.
HPX roofing resin is specifically designed for high‑performance environments and performs well in extreme heat, cold, and chemically exposed conditions.
Depending on the system used and correct installation, a resin roof can last 20–30 years or more with minimal maintenance.
In many cases, yes. Roofing resins can often be applied over suitable existing substrates, but proper preparation and assessment are essential.
Tricel and ECMS restored a WWII-era commercial flat roof at IWM Duxford using TriRoof HPX System, delivered ahead of schedule with a 20-year guarantee.
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Roofing resins like Original GRP, HPX, MultiFlex, Polyurethane, and Acrylic offer unique benefits for residential and commercial properties. Learn about the advantages, applications, and features of each resin type to choose the best option for your roofing needs.