Roof insulation installers and distributors of Isotherm and Aerolite in South Africa

Tel: 021 837 1824 | 021 553 0650 | Cell: 074 289 3007



Whirly birds are used in buildings to increase ventilation. Forced ventilation always requires an outlet and an outlet in the warmest and highest position in a roof is recommended. Warm air moves and rises and can escape through the Whirly bird.