BASEMENT, CRAWLSPACE, SLAB

MAJOR PROBLEMS

 

PERSISTENT FLOODING

 

A.  PERSISTENT FLOODING LIKELY:
Houses built in direct natural drainage areas (Fig. A1, Item A), or areas that sit within the upper reaches of seasonal water tables (Fig. A1, Item B), are very likely to get water in their basements.  Pump type dewatering systems on the house interior, exterior, or a combination of both, are usually required if the below grade areas are to be kept reasonably dry.  Because pump type dewatering systems are dependent on electrical power, they are useless if the power is interrupted. There is a higher likelihood that standing water will exist within the basement or crawl space area.

WHAT TO:  HOW TO:
A professional inspection should determine the most appropriate measures to take toward alleviating the situation.  This should take place after the worst of weather conditions such as from water runoff. A professional building analyst or engineer should consider the likely sources of water and the more appropriate means of relief.  It must be understood that total relief is not always possible!  Generally speaking, a water control system should be implemented one step at a time in order to monitor the results.

WARNING: Many “waterproofing” companies insist on installing an interior pick-up system, as a “guaranteed” system under most circumstances when water gets into below grade areas.  These systems often address only symptoms and can lead to more serious structural problems.

NOTE:  It is not recommended that you have a diagnosis of the situation made by any company providing corrective services.  Consult with an architect, building analyst, professional engineer, or soil scientist.