Soundproof A Basement Room - There are several ways to help avoid moisture damage issues in a basement. The very first rule of thumb is no dirt basements. Though these are less common in this day in age, it is good to point out that dirt flooring not just hold a huge amount of moisture but can also give off a variety of gases. When building a basement, make sure you've got a floor drain using a trap installed in the lowest point of the floor.
Without a floor drain, any water that is spilled inside can't get out. If needed, install a sump pump and ensure the sump cover is tightly sealed. Sump pumps are often used where flooding due to a high water table might be a problem. In addition, waterproof the outside of the base walls and install a perimeter drainage system. An often overlooked problem in bathrooms is moisture that comes from humidity.
The easiest way to control humidity is to exhaust water vapor generated in the house to the outside. Indications of high humidity include condensation on walls, pipes or other surfaces as well an overall sense of moisture in the air, dampness, and odors. Often, the humidity is going to be brought on by exposing the basement to external air (open windows), having wet laundry hung to dry in the basement, keeping firewood in the basement, and/or a dryer vent that exhausts indoors.
In hot, humid weather, keep basement windows shut. The key to keeping basement humidity is to keep them well ventilated and to keep additional moisture out of the basement.
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