Consideration of air leakage - interaction between the building and ventilation. Rakna med luftlackning. Samspel byggnad/ventilation.

Examines the behaviour of buildings with regard to ventilation and air leakage. Calculation of the air leakage of a building involves application of well known and accepted relationships concerning hydrodynamics and aerodynamics. Sets out some elementary cases in order to illustrate thecalculation procedure, and to show the way in which air leakage is dependent on the type of ventilation system in the building. These cases are accompanied by "Advice and recommendation for energy conservation" which lays down rules as to when energy can be saved by weatherproofing the building, how much energy can be saved and what points must be taken into consideration.