Cure-it GRP Wall Fillet Trim

The Cure-It Wall Fillet Trim is designed to form a smooth, waterproof joint where a flat roof meets an abutment wall—ideal for ensuring a clean finish and long-lasting protection. Made from a thin yet durable mould, it’s built to withstand the harsh and ever-changing weather conditions common on UK flat roofs. Whether you're a roofing professional or a hands-on homeowner, this trim makes sealing those awkward roof-to-wall connections quick and easy while maintaining a strong, watertight bond with the rest of the GRP system.

Installation Guide

To install, fix the 110mm side of the trim to the roof deck using large-headed nails spaced approximately 150mm apart. For longer spans, trims can be joined by overlapping them by 50mm and bonding them together using a suitable adhesive. Once the trims are in place, apply the Cure-It laminate system over the trim to fully bond and waterproof it into the roof surface. After this step is complete, the C100 flashing should be installed above the wall fillet to finish the job and ensure water is deflected away from the joint.

Product Details

Brand: Cure-It Length: 3 metres Available Types: D300 & D260 Use: Creates a sealed connection between roof decking and abutment walls

FAQs – Cure-It Wall Fillet Trim

Can I install the wall fillet trim without using the C100 flashing?

While it's technically possible, it's not recommended. The C100 flashing is designed to sit above the wall fillet to prevent water from running down the wall and behind the trim, helping to protect your roof over the long term.

Does the trim need to be laminated over with resin and matting?

Yes, for a fully watertight seal, the Cure-It laminate system (resin and matting) should be applied over the trim. This ensures the trim is securely bonded into the GRP roof surface.