... The balanced fan depressurization method has been modified for application to high-rise apartment buildings in order to measure the overall air leakage and the wall air leakage of an apartment unit simultaneously. The method requires the use of two sets of fan pressurization apparatus. One...

... Fan pressurization tests on two unoccupied houses were conducted once every two weeks for a period of a year (May 1982 to July 1983) to determine the seasonal variation in airtightness. Both houses are of insulated wood frame construction. House No. 1 was built with more insulation than...

... industrial buildings are very leaky and some are very airtight. Therefore Nordtest has asked us to develop a method for pressurization tests of large buildings and for equipment to carry out those tests. The paper will describe the equipment and present preliminary results. air leakage tracer gas fan...