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.

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At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

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Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

Multiple Products from the Same Supplier

If you're ordering multiple products from the same supplier, your order will be dispatched together once all items are ready. This means the longest lead time will apply.

If you need part of your order sooner, please call us on 01202 113233. We can arrange a split delivery, although an additional shipping charge will apply.