Common external wall cladding systems include timber cladding (in profile boards or shingles), fibre cement boards and panels, metal rainscreen cladding (aluminium, zinc, copper, or Corten steel), brick slip systems, natural and engineered stone cladding, render-on-insulation (EWI) systems, and composite panel systems such as aluminium composite material (ACM). Each system offers a different combination of aesthetic, performance, and cost.