Mold spores need water to grow. In most instances, mold problems occur when there is excess water. Mold problems in a bathroom resulting from steam can be controlled by wiping down shower walls and using an exhaust fan when showering.
When a mold problem exists which can’t be readily traced to a leak, it is recommended that the building be inspected in order to identify the excess water source. Once the problem has been identified and corrected, proper mold remediation can be performed.