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Subsequent air and dust tests found Stachybotrys chartarum, or black mold, growing in her daughter’s wall and problems throughout the home with the roof's metal waterproofing elements. “I ...
Waterproofing a structure from the exterior is the only method the U.S. International Building Code (IBC) recognizes as adequate to prevent structural damage caused by water intrusion. Waterproofing an existing basement begins with excavating to the bottom sides of the footings. Once excavated, the walls are then power washed and allowed to dry.
The most infamous species, Stachybotrys chartarum (previously known as Stachybotrys atra) and Stachybotrys chlorohalonata, are known as black mold or toxic black mold in the U.S., and are frequently associated with poor indoor air quality that arises after fungal growth on water-damaged building materials. [9]
In a situation where there is visible mold and the indoor air quality may have been compromised, mold remediation may be needed. The first step in solving an indoor mold problem is to remove the moisture source; [ 19 ] new mold will begin to grow on moist, porous surfaces within 24 to 48 hours.
Water seepage can lead to mold growth, causing significant damage and air quality issues. Properly waterproofing foundation walls is required to prevent deterioration and seepage. Another specialized area of waterproofing is rooftop decks and balconies. Waterproofing systems have become quite sophisticated and are a very specialized area.
Post-remediation verification of moisture content and fungal growth is required for successful remediation. Many contractors perform post-remediation verification themselves, but property owners may benefit from independent verification. Left untreated, mold can potentially cause serious cosmetic and structural damage to a property. [35]
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