To save costs, some families want to heat less in winter and ventilate less often. But this can be dangerous, warns Freiburg biologist Armin Schuster.
BZ: If you don’t turn on the heating in winter, you risk mold in the house, right?
Armin Schuster: It can’t be said across the board, because it really depends on the condition of the building. It is true that mold problems occur more frequently during the warm-up period: the risk of mold increases when the ambient temperature is below 16 degrees Celsius. But in a modern, thermally insulated home, the risk is generally small. Because that’s what’s inside …
