Look Out For Condensation
It’s no secret that mold is a result of water damage. One of the first steps to preventing mold is to look for high moisture places in your home that could become trouble areas. This should include places in your bathroom, such as around your shower, where condensation from steam can build up.
Climate Control
Another way to prevent water accumulation is to keep an eye on the temperature and humidity levels in your house. You should make sure that your humidity never exceeds a level of sixty percent because that will be too much for most air conditioning systems. Invest in a dehumidifier if you have to and try to set your thermostat at around seventy-five degrees to control humidity.
Air Conditioning
Especially if you live in a humid area, you want to avoid extreme temperature fluctuations in your house because that will promote water accumulation. Make sure that your air conditioning is the right size for your home. Never leave your windows open while your air conditioning is running. In addition to wasting money on energy bills, leaving the window open will likely boost the humidity in your house.
Source: https://www.allaspectswaterproofing.com/blog/how-to-prevent-mold-in-your-house/