Simple Basement Renos - There are several ways to help avoid moisture damage issues in a basement. The first rule of thumb isn't a dirt basements. Although these are less prevalent in this day in age, it's good to point out this dirt floors not just hold a large amount of moisture but also can give off a number of gases. When building a basement, make sure you have a floor drain with a trap installed at the lowest point of the ground.
With no floor drain, any water that's spilled inside cannot get out. Sump pumps are often used where flood due to a high water table may be a issue. In addition, waterproof the exterior of the base walls and put in a perimeter drainage system. An often overlooked problem in bathrooms is moisture that comes from humidity.
The simplest way to control humidity is to exhaust water vapor produced in the home to the exterior. Indications of high humidity include condensation on walls, pipes or other surfaces as well an overall sense of moisture in the atmosphere, dampness, and smells. Many times, 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 summer, use a portable air conditioner or air conditioning to reduce humidity. In warm, humid weather, keep basement windows closed. Run the furnace fan continuously to circulate home air. The key to keeping basement humidity is to keep them well ventilated and to keep extra moisture from the basement.