Estimation of the relation between tightness and leakage ventilation in a building. Part 2. Rakenteiden ilmantiiviyden ja ilmanvaihtuvuuden valisen riippuvuuden arvioiminen.

Reports pressure tests of the air leakage of an apartment building. The building is three storeys with a cellar above ground. There is a mechanical exhaust system and in addition every apartment has a kitchen fan.Pressure tests were made in each apartment. Leakage points were located with smoke tests. The leakage of windows and doors was determined with the "plenum" method. Each window was surrounded by a "plenum" and leakage at the boundary between plenum and wall was eliminated by an auxiliary fan which maintains the same pressure in the room as in the "plenum". Gives results of pressure tests.Pressure conditions in the building were measured with a 60-point manometer with feelers both inside and outside the building.