Which of the following is NOT a function of cladding?

Cladding primarily serves multiple essential roles in building construction, including providing thermal insulation, enhancing structural integrity, and protecting the building from weather elements. These functions help improve energy efficiency, add to the overall strength of the structure, and prevent damage from environmental factors such as rain, wind, and sun exposure.

Facilitating airflow through the building, however, is not typically considered a function of cladding. Cladding is mainly an outer layer intended to cover and protect the structural elements of a building. While ventilation systems are crucial in HVAC design for regulating airflow within a building, cladding itself is not designed to facilitate that airflow. Its role is to shield the building from external conditions and provide insulation, rather than to support air movement, which is managed through other architectural design and HVAC systems.