I just wonder if heating a room is an effective method of stopping mould from taking hold. Warmer air holds more water vapour, so while water volume in air goes up with temperature due to increased evaporation, relative humidity goes down.

But if mould is taking water right out of the air, then warmer air will allow it to colonise faster, so I'm wondering whether it's better to have warm air or cool air when it comes to fighting mould.

Intuition tells me warm air, but I'm not sure.