Flood Damage >> Crawlspace Drying

The crawlspace foundation may leak and fill with flood water, this is usually the case with older Crawlspace Drying buildings and actually will protect the foundation walls from collapse if the outside groundwater level is too high. Unfortunately, as flood water passes through your stone and brick foundation walls, it sometimes carries mortar with it. The water damaged foundations of most older and historic buildings are masonry.

  1. Stone front foundation walls with soft lime mortar are very durable, although the soft lime mortar does not hold up well to flood water erosion. Inspect some of the mortar of stone masonry foundation walls to ensure that it has not leeched from the water damaged joints and made the Crawlspace Drying wall unstable. If a significant amount of crawlspace foundation mortar has been lost, it can usually be replaced without dismantling the exterior wall. In some cases, a "loose" mortar could be poured into the joints to fill the bigger voids. To make sure that replacement mortar is not too hard for the surrounding foundation stone.
  2.  If the exterior wall is constructed of softer sandstone, the new mortar mixture should contain at least two parts hydrated lime to each part of the white Portland cement and also nine parts of sand (known as ASTM "Type 0" mortar). If the Crawlspace Drying exterior foundation wall is constructed of limestone or other relatively hard stone, a standard tuck pointing mortar mixture may be used (ASTM "Type N" containing one part of hydrated lime to one part of white Portland cement and then six parts sand). If the foundation walls are constructed of brick masonry or concrete block, there could likely be less leeching of the mortar than if the exterior walls were constructed mainly of stone.
  3.  Nevertheless, they shall be inspected for missing Crawlspace Drying mortar and repaired in the same manner as aboveground exterior walls, unless there is some reason to suspect a more serious structural damage problem created by the flooding. Generally the crawlspace foundations constructed of concrete block used a harder mortar mixture containing gray Portland cement. Water damage currents and water traveling in underground "streams" can erode soil beneath the exterior foundation walls and damaging the footings. Although this situation is not very common, when it does happen to occur the building's exterior foundation will be destabilized and then repairs will be necessary.
  4.  The best evidence of Crawlspace Drying structural destabilization is the appearance of cracks in the exterior foundation walls and in the plaster or drywall above the other foundations. And keep in mind, however, that not all of the cracks that appear after a flood damage are indications of long-term wall instability. Some also may result from temporary expansion and contraction of clay soil around the exterior foundation. When the soil then returns to its natural water content, the small cracks should shrink or, at the very least, not expand anymore. Other cracks might result from excessive moisture-related expansion of water damaged wood beams and joists tied to the exterior foundation walls. These small cracks should shrink as the Crawlspace Drying wood dries.

How To Remove The Sewage Smell From A Basement

They may start out small, getting into a small crack in the pipe; but as the tree or shrub continues to grow, so does the root. After time, this causes your sewer line to break, which in turn allows debris to hang up in the line, thus causing a backup. One way to prevent roots from entering your lin  read more..

Water Damage Electronic Restoration Classes

When candidate plug or receptacle D-subminiature, microminiature or printed circuit connectors are submitted for qualification, completely assembled mated pairs shall be used. Connectors shall have a full complement of contacts. For Level 1 qualification, three mated pairs shall be prepared. For Lev  read more..

Water Damage House Mold

Stages of Remediation Process The fungal remediation process consists of the following basic elements:1. Identifying and correcting the source of moisture and fungal contamination 2. Controlling the contaminated area to prevent spreading of fungi 3. Source removal of the fungi, contaminated dus  read more..

How Do Radon Detectors Work

Enter the RPP Device Code(s) of the reading/analysis system you use to read the device listed in Section 3.1. If your reading/analysis system is self-contained or made up of a group of components listed under one brand/model/type, please use Checklist #2 to determine the five-digit device code assoc  read more..

Carpet Cleaning After A Flood

Wet bottom sediment was extracted overnight within a Soxhlet apparatus. Two aliquots of the sample extract were quantitatively injected into a polystyrene-divinylbenzene gel permeation column (GPC) andeluted with dichloromethane to remove sulfur and Water Extraction Carpet Cleaning After A Flood partially isolate the target analyt  read more..

Do I Need A Dust Mask When Cleaning Up And Removin

Use an N95 dust mask whenever you do work that produces dust, such as removing and cutting wallboard/sheetrock, doing demolition work, sweeping up debris, or removing mold. Wearing an N95 mask reduces the risk of breathing in dust and mold and protects the lungs if properly used. Note: N95 dust mask  read more..

Hurricane Damage

A hurricane can cause extensive damage covering a huge amount of area, sometimes a hurricane could affect an area of thousand miles long creating a massive amount of Debris Removal Hurricane Damage. Thousands of people's lives are affected by hurricanes every year, luckily there are only a few hurricanes each year, the  read more..

Clear Your House Of Radon

EPA's Assessment of Risks from Radon in Homes In 2003 the Agency updated the estimates of lung cancer risks from indoor radon based on the National Academy of Sciences' (NAS) latest report on radon, the Biological Effects of Ionizing Radiation (BEIR) VI Report(1999). EPA worked Radon Mitigation Clear Your House Of Radon closely wit  read more..

Lead based Paint Can Cause Lead Poisoning

The employer shall make available upon request all records required to be maintained by this subsection to the Chief and the Director for examination and copying. (B) Environmental monitoring, medical removal, and medical records required by this section shall be provided upon request to employees,   read more..

Applied Structural Drying

Understand the limitations of bleach. While this material is convenient and appropriate as a sanitizer for hard, non-porous items after they have been cleaned, it has distinct drawbacks when cleaning flood-impacted buildings. Application of bleach water can cause corrosion of electrical components a  read more..