One of essential problems of the present research related to building analyses is air flows determination. Air flows not only cause energy consumption but also influence air quality parameters, specially in a multizone (and high) buildings. Thepaper presents the main assumptions of the newly developed simulation method. The major departures are addressed which distinguish this alternative method from other multizone models.These include the principles of dividing a dwelling house into zones and the accomplishment of the simulation. This paper shows also the example results of simulation with their comparison to results of measurements in existing dwelling houses.