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Installing Large Radius Corner Trim on Metal Sandwich Panels Impact Protection & Weatherproofing

Jul 11, 2025

Achieve durable and architecturally clean corners with Large Radius Corner Trim for 16mm Metal Decorative Sandwich Panels. This technical guide demonstrates proper installation techniques to protect building edges from impact damage while ensuring long-term weather resistance.

Key Installation Steps Demonstrated:

1. Substrate Preparation: Aligning vertical battens at 90° corners with laser-level verification.

2. Trim Positioning: Securing corner trim profiles plumb from base to eaves using anti-corrosion screws.

3. Panel Integration: Locking metal cladding panels into trim channels with controlled 3-5mm thermal gaps.

4. Flashing Coordination: Sealing transitions between corner trim and adjacent waterproofing layers.

Critical Specifications:

Failure Prevention Focus:

· Avoid panel core compression by not over-driving screws

· Prevent buckling by maintaining continuous vertical alignment

· Eliminate water ingress through correct end-cap installation

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