Preventative Tips

2011-01-17T16:19:00.000-08:00

Problem: Defective, clogged, or nonexistent gutters and downspouts allow roof water to form puddles, or wet the soil near or against basement walls, and enter through cracks or openings in the masonry.

Solution: Install gutters and downspouts wherever needed. Keep them free of debris. Where leaves and twigs from nearby trees may collect in a gutter, install a basket-shaped wire strainer over the downspout outlet or place screening across the length of the gutter. Repair gutters and downspouts as soon as the need appears.

To prevent concentration of water at the point of discharge, use a concrete gutter or splash block to carry the water away at a slope of one inch per foot. Also, consider extending downspouts from rain gutters away from the outside foundation.

Roof water can also be piped underground to a storm drain, dry well, or surface outlet, fifteen feet or more from the house.

Problem: Dense shrubbery and other plantings around the basement walls prevent good ventilation.

Solution: Trim heavy growths of shrubbery so that soil gets more sunlight and dries quicker. When digging up the plantings, remove any pieces of masonry, mortar, or other material buried near the house after the basement was excavated.

Problem: Unprotected basement window wells act like cisterns during heavy storms, permitting water to seep in around window frames and below windows.

Solution: Windows or parts of windows below grade should be protected by metal or masonry window wells, with bottoms consisting of gravel to permit good drainage. Clear plastic bubbles are available to cover the entire window well like an awning.

Problem: Atmospheric moisture produces condensation (“sweating”) on cool surfaces in the basement, particularly walls, floors, and cold water pipes.

Solution: Insulate the water pipes. Promote good ventilation–sunlight and free movement of air can quickly dry out a basement. Ventilation should be regulated according to the weather conditions. During hot, humid weather or long rainy spells, windows should be closed because the outside air will probably contain more moisture than the basement air. Heat the basement during the winter. During hot weather, use air conditioning to cool and dehumidify the air.

Problem: Leaky plumbing or other sources of moisture–such as clothes hung to dry on basement lines–increase humidity in the air, causing condensation.

Solution: Repair plumbing promptly, open windows or dry clothes in an automatic dryer vented outdoors. If the problem persists, experiment with using a large-capacity dehumidifier to eliminate condensation. Try borrowing one from a friend or neighbor before investing in what may turn out to be the wrong remedy.

2011-01-06T13:29:00.000-08:00

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Basement Waterproofing

Preventative Tips