What Are the Installation Methods for Modern Exterior Wall Cladding?

Modern aluminum exterior wall cladding can be installed using several proven methods: through-fastened, cassette, and concealed-clip (rainscreen) systems. Through-fastened panels attach directly to the substructure with visible screws; this method is cost-effective and simple but requires precise panel fabrication to ensure even screw spacing and prevent water ingress at fastener locations.

Cassette systems pre-assemble panels into individual boxes that lock onto vertical carrier rails. Clips snap panels into place, delivering a seamless, flush appearance with minimal visible fixings. This technique accommodates thermal movement and simplifies future panel removal for maintenance. Extruded aluminum gaskets between cassettes ensure water tightness.

Rainscreen clip systems mount flat panels over an air cavity using concealed brackets fixed to horizontal or vertical rails. Adjustable clip heights permit precise alignment and plumb lines. The air cavity promotes ventilation, moisture drainage, and thermal performance. Joints between panels are sealed with gaskets or structural silicone, providing continuous weather resistance.

Selection depends on project priorities: through-fastened for budget-sensitive installations, cassette for premium façades with tight tolerances, and rainscreen for high-performance assemblies emphasizing moisture control and energy efficiency. Coordination with structural engineers, waterproofing consultants, and panel fabricators ensures the chosen method meets architectural, structural, and environmental requirements.