Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method (ISO 9972:1996, modified); German version EN 13829:2000
The document specifies the use of mechanical pressurization of a building or building component. It describes techniques for measuring the resulting air flow rates at given indoor-outdoor static pressure differences. From the relationship between the air flow and pressure difference, the air leakage characteristics of a building envelope can be evaluated.#,,#