Different things may lead to mold growth in your house. So long as all the needed conditions like darkness, source of food and heat, oxygen, water and very little or no time to clean the house are sufficient, you are likely to form a breeding place for mold in your house.
Humidity
For humidity to cause mold formation it only takes a few days or as little as 48 hours. Falling rain on to surfaces such as walls and fences also bring about mold growth and further spread of microorganisms into the premise.
Drying of clothes indoors can also result to mold formation, when the clothes are left damp, the air in the surrounding gets humidified leading to mold growth but the use of a humidifier reduces the formation of molds (and therefore potentially expensive mold remediation services by professionals) since it will compress it to as low as 55%.
Leaks
In the cases of small leaks that cannot be easily noticed, there is most likely mold formation that cannot also be noticed earlier enough. They are only identified when items have already been affected badly or even when they become visible on walls and floors.
Condensation
Surfaces tend to be tremendously cold even if carpeted especially the floors and walls if they are made of concrete. Once an individual realizes that, he or she will be tempted to warm the premise. During this process, condensation is likely to take place and make the area ideal for mold breeding.
Inadequate ventilation
When ventilation is minimal, most likely there could be poor air flow. Evaporation of water will lead to steam formation thus making the room humid and further the best place for mold formation and the spreading of bacteria. Ventilation is most important in areas that involves excessive use of water like the kitchen and the bathroom.
Damp clothing
People tend to forget their swimming costumes or even trunks inside their bags after coming from swimming or working out. You may start seeing mold growing on the clothes over time if you do not use them often. The same also applies to those clothes perfectly cleaned and washed then left in the same state for days. The humid and temperature will accelerate mold formation. Make sure that all clothes are put to dry once laundry is completed.
Flooding
Since it carries with it bacteria and every sort of dirt that may be carried away with the flood water which contain sewerage or even the washing machine’s dirty water, it enhances mold growth. Other than that, there are so many health concerns that are associated with this.
Under house water
Water most likely can get collected around your house especially in case of poor landscaping. This may further get into the basement and the house foundation. When such is realized one is recommended to check on the landscaping, guttering and even the drainage system to get rid of as much water as possible.
For the basement, make sure there is no dampness to avoid mold formation and further you can get a humidifier to freshen up the air in case of poor ventilation.
Source: http://restoringwaterdamage.com