Problem: Defective, clogged, or nonexistent gutters and downspouts allow roof water to form puddles, or moist soil near or from basement walls, and then enter through openings or cracks in the masonry.
Solution: Install gutters and downspouts where required. Where leaves and stalks from neighboring trees can collect in a gutter, put in a basket-shaped wire strainer over the downspout outlet or put screening throughout the length of the gutter. Repair gutters and downspouts when the need appears. To reduce concentration of water at the point of release, use a concrete gutter or splash block to take away the water in a slope of one inch per foot. Also, think about extending downspouts from rain gutters away from the exterior base.
Roof water may also be piped underground into a storm drain, dry well, or surface outlet fifteen feet or more from the home.
Problem: Dense shrubbery and other plantings around the basement walls stop excellent ventilation.
Solution: Reduce heavy growths of shrubbery so that dirt gets more sunlight and dries faster. When digging the plantings, remove any bits of masonry, mortar, or other material buried near the home after the basement was excavated.
Problem: Unprotected basement window wells behave like cisterns during heavy storms, allowing water to seep in around window frames and under windows.
Option: Windows or parts of windows below level ought to be protected by metal or masonry window wells, with bottoms composed of gravel to permit decent drainage. Clear plastic bubbles can be found to cover the whole window nicely like an awning.
Problem: Atmospheric moisture produces condensation (“sweating”) on cool surfaces in the cellar, especially walls, flooring, and cold water pipes.
Option: Insulate the water pipes. Promote decent ventilation–sun and free movement of air can easily dry out a cellar. Ventilation ought to be regulated based on the weather conditions. During warm, humid weather or long rainy spells, windows should be closed since the outside air will most likely contain more moisture than the basement atmosphere. Heating the basement during the winter. During warm weather, use air conditioning to cool and dehumidify the air.
Problem: Leaky pipes or other sources of moisture–such as clothes hung to dry on cellar lines–raise humidity in the atmosphere, causing condensation.