Water Coming Up Through Basement Floor After Heavy Rain - There are several approaches to help prevent moisture damage problems 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 this dirt floors not only hold a huge amount of moisture but also can give off a variety of gases. When constructing a basement, make sure you've got a floor drain using a trap installed at the bottom point of the ground.
With no floor drain, any water that is spilled inside cannot escape. Sump pumps are usually used where flood due to a high water table might be a issue. In addition, waterproof the outside of the foundation walls and put in a perimeter drainage system. A frequently overlooked problem in bathrooms is moisture that comes out of humidity.
The simplest way to control humidity is to exhaust water vapor generated in the house to the outside. Indications of high humidity comprise condensation on walls, pipes or other surfaces as well an overall awareness of moisture from the air, dampness, and smells. Many times, the humidity is going to be caused by exposing the basement to outside air (open windows), having wet laundry hung to dry from the basement, storing firewood from the basement, and/or a dryer vent that exhausts inside.
In summer, use a portable air conditioner or air conditioning to decrease humidity. In warm, humid weather, keep basement windows closed. Run the furnace fan continuously to circulate house air. The real key to maintaining basement humidity is to keep them well ventilated and to keep additional moisture from the basement.