Flood Damage >> Dehumidification

Cracks from flood damage that cause foundation erosion, however, this can be expected to worsen over time as your building settles slowly to its new soil support point. The best Dehumidification indicator of this type of structural problem is foundation cracks that move. Movement, particularly the widening of cracks, this is a sign of structural instability warranting careful foundation examination by a qualified structural damage engineer or architect.

  1. The best way to the side whether a foundation crack is moving is to purchase a device that is called a "tell-tale." This small gauge is glued to a Dehumidification wall on either side of a foundation crack. Its markings will indicate the wall crack's horizontal and vertical movement over time. Another good way to determine whether movement actually exists is to glue a glass microscope slide across a foundation crack. If the glass slide breaks, foundation movement is occurring. Water damage may erode the soil adjacent to the edge of your building.
  2. This could lead to two problems, first the soil may be "dished" next to your building which could result in additional water damage from future rain. The Dehumidification soil that is adjacent to the building should slope away from its side to ensure that future rains do not drain inside the building. Once the floodwaters subside, check all of the soil drainage patterns and re-grade as necessary. A far less common soil problem is the loss of enough dirt to protect your foundation walls from frost-heaving during the cold weather. If the Dehumidification foundation is not buried sufficiently below the frost line, it may heave upward when the loose ground beneath it freezes.
  3.  And for this reason, it is always best to replace any lost dirt from a flood, adjacent to the building foundation. Erosion could also affect the paving. From your building’s conservation perspective, the worst possible problem occurs when the eroded slabs of asphalt or concrete channel flood water into, rather than away from your building. As with soil erosion, this could lead to water problems from the future rains. If this Dehumidification condition exists, the concrete slab should either be raised (by mudjacking, for example) or it should be removed and replaced with a slab that drains properly.
  4. With very few exceptions, any building insulation that has been immersed in flood water should be removed for two reasons, first after being completely saturated, most building insulation is rendered permanently ineffective, particularly loose-fill types, such as cellulose, vermiculite, rock wool, and blown fiberglass insulation, which can tend to collapse under their own weight. And second, saturated insulation holds the water which, if left in place, can perpetuate high excessive moisture conditions that is destructive to wood, masonry, and most steel. Some types of building insulation may be left in place after a Dehumidification contact, such as closed-cell styrene and all urethane board insulations that do not absorb flood water. These should be inspected to decide whether or not they hold moisture against the wood or masonry building materials or steel fasteners.

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