ISO 6707-1 defines cladding as an external, vertical, or near-vertical nonloadbearing covering to a structure, which typically provides protection from the elements and a curtain wall as a non-loadbearing wall positioned on the outside of a building and enclosing it. Cladding and curtain walls are used to provide a degree of thermal insulation and weather resistance, as well as to improve the appearance of buildings and provide a control element for noise and fire resistance.
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