Ventilation with windows. Planning is the most important prerequisite. Luften mit fenstern: die grundliche planung ist wichtigste voraussetzung.

It is necessary to design the ventilation system to avoid excess humidity in the apartments. Discusses the sources of moisture release in rooms, properties of air temperatures in relation to moisture absorption, condensation in bedrooms in particular, and moisture damage to building fabric. Advises on ventilation measures to control humidity.