Product Description

Cromar GRP C3 External Fillet Corner

The Cromar GRP C4 Universal Internal Corner is a pre-moulded GRP component designed to simplify the detailing of internal 90° corners on flat roofing systems. Whether you're joining edge trims, wall fillets, or a combination of both, the C4 provides a seamless, watertight solution that saves time on site and eliminates the need for precise mitre cuts. Manufactured from the same high-quality, UV-stable Glass Reinforced Plastic as the rest of the Cromar PRO GRP system, the C4 corner ensures durability, consistency, and a professional finish at critical roof junctions.

Key Features:

• Universal Internal Corner: Fits a variety of GRP trim combinations at 90° internal angles
• Watertight Detailing: Prevents water ingress at vulnerable wall junctions.
• Quick & Easy Installation: Saves time with no cutting or on-site fabrication required.
• Durable & Weatherproof: Made from UV-stable, impact-resistant GRP.
• Perfect Match: Engineered for use with Cromar D260 trims in GRP roofing systems.

For use with Cromar PRO GRP roofing systems.