Description
GRP External Fillet Corner (C3) – Pre-Formed Corner for External GRP Roof Junctions
Achieve a clean, durable finish at external roof junctions with the GRP External Fillet Corner (C3) — a pre-formed fibreglass corner trim designed to seamlessly connect two external fillet trims in GRP flat roofing systems.
Precision moulded and ready to install, this component ensures fast installation, consistent detailing, and long-term waterproof performance.
Perfect External Corner Detailing
- Pre-Formed External Corner – Designed for joining external fillet trims
- Hot-Pressed Precision – Consistent shape for a perfect fit
- Quick Installation – Nail, seal, and bandage for a fast finish
- Smooth, Seamless Appearance – Use tissue for a professional result
- Durable Fibreglass Construction – Impact-resistant and weatherproof
- Time-Saving Solution – No need for on-site shaping
Built for Long-Term Performance
This external corner helps:
- Maintain waterproof integrity at exposed junctions
- Reduce risk of leaks and weak points
- Improve the strength and durability of the system
- Deliver a clean, professional roofing finish
Installation Overview
- Fix the corner to the deck with nails (both ends and centre)
- Apply a thin bead of PU adhesive to all joints
- Smooth the adhesive to fully seal
- Bandage with fibreglass tissue for a seamless finish
✔ Ensures a strong, watertight bond
Ideal Applications
- GRP flat roof external corners
- Fillet trim junctions on roof edges
- Domestic and commercial roofing systems
- New installations and refurbishment projects
Product Specifications
- Product Type: External fillet corner trim (C3)
- Material: Fibreglass (GRP)
- Application: External corners in GRP roofing systems
- SKU: PG-C3-Ext-Wall
- Stock Type: Warehouse Fulfilled
Why Use a Pre-Formed External Corner?
Pre-formed corners provide accuracy, consistency, and speed, ensuring your roofing system remains watertight and professionally finished.
Frequently Asked Questions
What is a C3 external fillet corner used for?
It is used where two fillet trims meet at an external corner on a GRP roof.
Does it improve waterproofing?
Yes, it helps create a secure, watertight external junction.
Is it easy to install?
Yes, it is quick to fix using nails and adhesive.
Do I need to bandage over it?
Yes, applying fibreglass tissue ensures a smooth, sealed finish.
Is it durable?
Yes, it is weatherproof, impact-resistant, and long-lasting.
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