Marvin Basement Hopper Windows - There are several ways to help prevent moisture damage problems at a basement. The first guideline is no dirt basements. Though these are less common in this day in age, it's good to point out that dirt flooring not only hold a huge amount of moisture but can also give off a number of gases. When building a basement, make sure you have a floor drain with a trap installed at the bottom point of the ground.
Without a floor drain, any water that's spilled inside can't escape. If needed, install a sump pump and ensure the sump cover is tightly sealed. Sump pumps are often used where flood because of a high water table might be a problem. In addition, waterproof the outside of the base walls and put in a perimeter drainage system. An often overlooked problem in bathrooms is moisture that comes out of humidity.
The simplest way to control humidity is to exhaust water vapor produced in the home to the outside. Signs of high humidity include condensation on walls, pipes or other surfaces as well an overall sense of moisture in the atmosphere, dampness, and smells. Often, the humidity will be caused by exposing the basement to outside air (open windows), having wet laundry hung to dry in the basement, storing firewood in the basement, or a drier vent that exhausts indoors.
To reduce humidity, there are several things that a homeowner can do: install energy-efficient windows, insulate walls and cold water pipes, prefinished flooring if possible, run drier vents to exhaust directly outside and don't dry laundry or firewood on your basement. In summer, use a portable dehumidifier or air conditioning to reduce humidity. In hot, humid weather, maintain basement windows closed. The key to keeping basement humidity low is to keep them well ventilated and keep extra moisture out of the basement.