Styrofoam Basement Wall Forms - There are numerous approaches to help prevent moisture damage problems at a basement. The very first rule of thumb isn't a dirt basements. Although these are somewhat less common in this day in age, it is good to point out that dirt floors not only hold a huge amount of moisture but can also give off a number 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's spilled inside cannot get out. Sump pumps are often used where flood due to a high water table might be a issue. Additionally, waterproof the outside of the foundation walls and put in a perimeter drainage system. An often overlooked problem in basements is moisture that comes from humidity.
The simplest way to control humidity would be 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 awareness of moisture in the atmosphere, dampness, and odors. Many times, the humidity will be caused by exposing the basement to outside air (open windows), using wet laundry hung to dry in the basement, keeping firewood in the basement, and/or a drier vent that exhausts indoors.
In hot, humid weather, keep basement windows closed. Run the furnace fan continuously to circulate house air. The key to keeping basement humidity would be to keep them well ventilated and keep extra moisture from the basement.