The ventilation and leakage characteristics of suspended floors are not well documented. As part of a larger study of air flows in housing, the air flow through a suspended floor has been investigated under a number of conditions and methods of ventilation. The leakage of the suspended floor and the space beneath it has been measured and is compared with the house leakage.
Rising moisture from the ground has caused quite a lot of damage on foundations of Swedish buildings. It is in some constructions possible to prevent this by mechanical ventilation below the floor or below the concrete slab. This paper will present a model for coupled air flow and heat conduction for mechanically ventilated foundations. The presented model uses analytical expressions for the air flow in an air-permeable layer below a rectangular building. Analytical double-periodic functions of elliptic type are used.
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