GRP (Glass Reinforced Plastic) and EPDM (Ethylene Propylene Diene Monomer) are best known for their exceptional performance in roofing, and for good reason. But limiting them to that single purpose undersells their incredible potential. These materials are not only waterproof, durable, and weather-resistant, but also adaptable to environments where many other building materials simply fail. Their lightweight nature, flexibility, and chemical resistance make them valuable across industries, from landscaping and marine repairs to industrial construction. So, we collected ten applications for GRP and EPDM you may not have known about, each showcasing how these versatile building solutions can outperform traditional materials. Pond and Water Feature Linings When it comes to creating waterproof linings for ponds, fountains, or even large ornamental lakes, EPDM is unmatched. Its watertight properties and high flexibility allow it to adapt to any shape, no matter how irregular, without splitting or leaking. It remains stable in extreme weather, from freezing winters to scorching summers, and is completely safe for fish and aquatic plants. Vehicle Bodywork and Panels GRP has been a game-changer in the automotive, motorsport, and caravan industries. Known for being lightweight yet extremely strong, it allows manufacturers to design aerodynamic panels that metals simply can’t match. Unlike steel, GRP doesn’t rust, and it offers better impact resistance than many traditional materials. From custom racing car panels to weatherproof camper shells, GRP’s mouldability and resistance to corrosion make it an ideal choice for vehicles that demand both style and performance. Green Roof Bases As eco-friendly architecture grows in popularity, so does the use of GRP and EPDM as green roof waterproof membranes. Acting as both a root barrier and a watertight layer, these materials protect the structural integrity of the roof while allowing vegetation to flourish above. GRP’s strength ensures it can withstand the weight of soil and plants, while EPDM’s flexibility prevents cracks even as temperatures fluctuate, and these layers are built to last for decades. Industrial Flooring Solutions In warehouses, factories, and workshops, the floor takes constant abuse from heavy machinery, foot traffic, and potential chemical spills. GRP flooring panels are specifically engineered for these environments. They’re resistant to impact damage, non-corrosive, and often come with slip-resistant surfaces to improve safety. Because GRP is non-conductive, it’s also valuable in settings where electrical hazards could be a concern, resulting in a hardwearing, low-maintenance floor surface that can outperform steel, concrete, and timber in demanding industrial settings. Waterproof Planters and Garden Containers For landscape architects and urban designers, EPDM offers an excellent lining option for large planters and unique garden structures. By preventing leaks, EPDM protects the surrounding surfaces from water damage while maintaining optimal moisture levels for plants. Its ability to stretch without tearing means it can line even the most unconventional planter shapes. Swimming Pool Waterproofing and Refurbishment GRP is increasingly used in swimming pool construction because it forms a smooth, seamless waterproof barrier that’s resistant to pool chemicals, UV rays, and constant water pressure. It can be colour-finished for an attractive look and is far easier to repair than traditional pool tiles or concrete. Bridge Deck Protection EPDM membranes have a lesser-known but vital role in infrastructure, protecting bridges from water damage. Installed beneath asphalt or concrete, EPDM acts as a waterproofing layer that prevents water from seeping into the deck, stopping rust in steel reinforcements and preventing cracks from freeze-thaw cycles. Because EPDM remains flexible in both extreme heat and cold, it’s a trusted choice for civil engineering projects where long-term performance is essential. Boat Decking, Hull Repairs, and Marine Use GRP’s high structural strength and resistance to corrosion due to saltwater have made it indispensable in the marine industry. Not only is it used in manufacturing new boats, but it’s also a go-to material for repairing damaged hulls, reinforcing decks, and restoring older vessels. The way it can bond seamlessly to existing fibreglassensures repairs are tough and watertight. Cold Storage and Food Preparation Environments In industries where hygiene is non-negotiable, GRP panels are ideal for walls and ceilings. They’re easy to clean, non-porous, and highly resistant to mould and bacterial growth. Because they’re unaffected by constant moisture and withstand rigorous cleaning chemicals, GRP panels are widely used in dairies, meat processing plants, and commercial kitchens. Outdoor Furniture and Public Fixtures Public seating, picnic tables, and park signage face constant exposure to the elements. GRP offers a low-maintenance, weather-resistant alternative to wood or metal, which can rot, rust, or fade. With GRP, outdoor furniture can remain attractive and structurally sound for years without the need for repainting or replacement. Its resistance to UV degradation and temperature changes means it performs equally well in scorching heat, freezing winters, or salty coastal air. GRP and EPDM aren’t just roofing materials, they’re multi-industry, versatile building solutions that deliver where others fail. Their combination of strength, flexibility, and weather resistance makes them the go-to choice for waterproofing, construction, landscaping, and marine applications. Whether you’re building a pond, reinforcing a bridge, or designing a green roof, GRP and EPDM offer proven performance that lasts for decades.
