What joint systems improve flexibility and durability of ACP panels?

ACP façade performance depends on accommodating thermal expansion, wind loads, and building movement. Hidden interlocking joint systems—where panel edges engage in aluminum jamb profiles—provide clean sightlines and allow ±5 mm movement per panel. Silicone-filled gaskets within the joint prevent water ingress while maintaining elasticity. For faster installation, click-fit channel systems use pre-assembled clips and cassettes that snap into continuous rails; these rails flex with building sway and temperature shifts. Butt-joint systems with movement joints every 2–3 m incorporate neoprene or EPDM seals rated for −40 °C to 80 °C, ensuring durability in harsh climates. In seismic zones, specify expansion joints in both horizontal and vertical directions, sized per structural engineer recommendations (often 1% of façade length). All metal components should be anodized or PVDF-coated to protect against abrasion and UV degradation. Properly designed joint systems extend the life of your ACP installation, reduce maintenance, and preserve aesthetic integrity over decades.