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Air leakage in industrial buildings—preliminary results: The National Testing Institute is currently investigating air leakage in industrial buildings. In 1980 the Institute was asked to carry out a number of pressurization/depressurization tests in industrial buildings. The buildings that were tested were constructed according to two different principles: light-concrete elements attached to a prefabricated concrete frame and sheet metal attached to a steel frame insulated with mineral wool. The measurements were asked for by a manufacturer of building materials. The results indicate that some 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, industrial buildings, equipment
Swedish National Testing Institute, Borås,