About GRP and EPDM Roofing Corners

GRP Roofing Corners (Glass Reinforced Plastic)

GRP roofing corners are pre-formed components designed for use with fibreglass flat roofing systems. These corners provide a neat, watertight finish at junctions where two edges meet—such as external or internal corners on flat roofs, garages, or extensions.

Key Benefits of GRP Roofing Corners:

• Seamless Integration – Designed to work with other GRP trims for a smooth, professional finish.

• Durable & Weatherproof – Made from strong fibreglass, GRP corners offer long-lasting protection against rain, UV exposure, and temperature changes.

• Easy Installation – Bonded and taped into place without complex cutting or shaping.

• Low Maintenance – Once installed, GRP corners require minimal upkeep.

Ideal For:

• Flat roofs

• Garage roofs

• House extensions

• Garden rooms or outbuildings

EPDM Roofing Corners (Ethylene Propylene Diene Monomer)

EPDM roofing corners are flexible and pre-moulded components used with EPDM rubber roofing systems. They are essential for achieving a leak-free seal at internal and external roof junctions, especially around upstands, edges, and awkward angles.

Key Benefits of EPDM Roofing Corners:

• Flexible Fit – Moulded rubber easily adapts to various shapes and surfaces for a tight seal.

• Excellent Weather Resistance – EPDM rubber withstands extreme temperatures, UV rays, and water exposure without cracking or shrinking.

• Quick Installation – Applied using primer and seam tape or adhesive, saving time and reducing installation errors.

• Eco-Friendly & Long-Lasting – EPDM is recyclable and has a lifespan of over 30 years with minimal maintenance.

Ideal For:

• Flat and low-slope roofs

• Commercial roofing systems

• Residential extensions and porches

• Complex roof junctions

Choosing the Right Roofing Corner

When choosing between GRP and EPDM roofing corners, consider your roofing system type:

• Use GRP corners with fibreglass roofing for a rigid, seamless finish.

• Choose EPDM corners with rubber membrane roofs for a flexible, easy-to-install solution.

Both options provide effective waterproofing, durability, and professional results, ensuring your roof stays protected and looks great for years to come.