Minimum air flow versus condensation. Mindestluft gegen feuchte.

Notes that the trend to airtight window constructions has upset the balance in buildings between moisture generation and its removal. Treats the factors which combine to determine whether a building will have moisture problems. Presents a procedure for the straightforward determination of the specific minimum air flow required in a particular building to prevent condensation on the inner surface of corners formed by two dimensional external walls. Determines the base air flow and the supplementary air flow for four models of representative apartments. Concludes that for adequate ventilation of dwellings it is necessary to have a set value of the leakiness of the building envelope.