C3 External Corner Trim

The C3 External Corner Trim is a pre-formed GRP corner piece specifically designed for use with D260 fillet trims. Crafted from high-strength fibreglass, this component provides a watertight and durable finish at external roof corners, eliminating the need for complex mitre cuts and ensuring a professional look.

Built to withstand the elements, the C3 trim guarantees a long-lasting seal for both residential and commercial roofing applications. It is the perfect addition to any GRP roofing system, offering easy installation, minimal maintenance, and superior protection against leaks.

Key Features

1. Durable GRP Construction: Made from premium glass-reinforced plastic for excellent strength and longevity.
2. Watertight Finish: Ensures complete protection against moisture ingress at external roof joints.
3. Easy to Install: Simply nail the trim to the deck at each end and in the middle.
4. PU Adhesive Compatibility: Use a thin line of PU trim adhesive for a perfect seal between the trim and the corner.
5. Neat & Professional Look: Pre-formed design saves time and eliminates trimming or reshaping.
6. Low Maintenance: No need for regular upkeep—once installed, it provides lasting protection.

Why Choose the C3 External Corner Trim?

Designed with precision, the C3 External Corner Trim delivers a strong, seamless connection for GRP roofing systems. It’s ideal for both professionals and DIY installers who demand durability, performance, and simplicity in every project.

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are�unopened and unused�then simply�contact us�for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are�unopened and unused�then simply�contact us�for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.