As a homeowner, you want to be sure the company you hire for mold remediation uses safe mold remediation techniques. After all, it is not just about removing mold but also preventing future growth and re-infestation. In this article, we will describe safe mold remediation techniques that will keep your family and employees healthy while the work is being done.
Containment
Professionals use containment to prevent the spread of mold spores during the remediation process. They seal off the contaminated area and surrounding rooms with plastic sheeting to limit exposure for themselves, other workers, or building occupants. The level of containment used is based on the severity of the mold infestation, as well as its location in the building.
Moisture Assessment
Mold grows in moist places, so the first step of safe mold remediation techniques is to determine the source of moisture. This is done by assessing the affected area, as well as areas nearby for visible signs of mold, and checking for water damage or leaks. Mold professionals may use a moisture meter or conduct a thermal imaging scan to get more detailed information.
Preparation
If the damage is extensive, professionals may need to remove porous materials such as drywall and carpeting. They do this with high-grade safety gear like masks, gloves, goggles, and hazmat suits. They double-bag these items and wipe down the outside of the bags before they take them out of the contamination zone. These materials are then disposed of appropriately.
Cleaning and Disinfection
For nonporous surfaces, mold is generally removed by wiping and scrubbing them with hot water and detergent. In some cases, more specialized solutions are required such as a baking soda paste or undiluted bleach. These are always applied in accordance with product instructions and rinsed thoroughly afterward. Drying the surface is crucial as a dry environment discourages further mold growth.
In some cases, a biocide is needed to kill the mold and prevent it from growing back. This can include chlorine bleach, although this is rarely used as it is not an EPA-approved fungicide. However, there are some instances where professional judgment may indicate its use, such as in homes with immunocompromised individuals.
After completing the remediation, professionals will check the area for any new mold growth and moisture sources. If they find moisture or other issues, such as a leaky bathroom fan or a dehumidifier that is not working properly, they will repair these items. They will also inspect and clean air ducts to prevent the spread of mold spores from one room to another. They will then perform post-remediation verification to ensure that the home is safe for reoccupation. This includes visual inspections as well as air quality tests to ensure that the levels of moisture and spores are in acceptable ranges.