RESTRIM C1 Corner

The RESTRIM C1 Corner is a precision-engineered, pre-moulded GRP (glass-reinforced plastic) external corner trim designed to deliver a clean, watertight finish at 90° junctions in flat roofing enabling easy corner details without on-site mitring.

Key Features & Benefits

• Pre-formed geometry: Manufactured in a high-pressure mould, the C1 Corner ensures consistent shape and angle, reducing reliance on field cutting or mitre joints.
• Robust & durable: Made from quality GRP with a stiff, impact-resistant composition, it resists warping, UV degradation, and long-term weathering.
• Neat watertight jointing: Designed for tight interface with adjacent trims, the trims and corner junctions can be sealed with PU adhesive and reinforced (bandaged) to create a durable, leak-resistant corner detail.
• Aesthetic continuity: The smooth, consistent surface matches RESTRIM profiles, enabling a flush, uniform appearance across all roof edges.
• Compatibility: Works alongside RESTRIM (or RES TRIMS) A-series and B-series edge profiles to create 90° external corners without custom fabrication.
• Ease of installation: Fixing is simple — the corner can be nailed to the substrate with fasteners at both ends and the middle, with joins sealed and bandaged in line with standard trim practices.

Typical Applications

• Flat roof external corners
• Junctions where roof edge changes direction
• Roof-to-wall abutments requiring weatherproof corners
• Refurbishment projects where pre-moulded corner detailing is preferred over

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