METHOD FOR MEASURING OF BUILDING TIGHTNESS AND OF A MECHANICAL VENTILATION SYSTEM THEREOF AND DEVICE THEREFOR

摘要

The invention concerns a method for measuring in a building comprising at least a space (3, 4) equipped with at least air intake (9) and at least an air extraction outlet (8) connected to the ventilation system (5) equipped with a ventilator (7). Said method consists in tightly closing the air intake of each space (3, 4) and the air extraction outlet (8) of each space, then in operating the ventilator (7) of the mechanical ventilation system while maintaining the extraction outlets (8) closed or removing or opening at least some of the outlets (8) and in measuring from the ventilator (7) the extracted flow rate to determine respectively the tightness of the ventilation system, the tightness of a space or the building tightness.