Texas State University Logo

Online Resources

Join the Conversation

adjust type sizemake font smallermake font largerreset font size

Mold Remediation Worker

Course Cost:  $375.00

Course Value
Do you have construction experience? Do you have experience in environmental abatements such as lead or asbestos? Or have you thought about being a complete mold remediation company?

After taking this course you will be able to apply the knowledge you already have and add a new service to your business.

History and Backgroud of Mold and Microbial Problems
    Mold in the Environment
    Body Structure of Fungi
    Health Effects
Mold Inspection Process
    "Red Flags"
Mold Sampling Methods and Techniques
    Air Sampling
    Weather Conditions
    Direct Sampling
    Carpet Sampling
    Bulk Sampling
    Intrusive Inspection and Sampling
Interpreting Laboratory Reports
Legal Issues
Personal Protective Equipment (PPE)
    Body Protection
Remediation Equipment
Safety Equipment and Protective Planning
    Ladders and Scaffolding
    Fire Protection
    Emergency Procedures
    What are the New York City Guidelines
    Levels of Remediation (NYC and IICRC)
    Cleaning Procedures
Post-remediation Activities
Mold Prevention
    Specific Recommendations
Jobsite Checklist
New York City Guidelines
OSHA Regulations 29 CFR
EPA Mold Remediation Guidelines

Continuing Education Credits

CEU's for this style of learning are available for the following professional and State organizations;
    AmIAQC - 16 RC's
    InterNACHI - 16 CEU's
    Mississippi Home Inspection Licensing Board - 16 CEU's
    Oregon Construction Contractors Board - 8 CEU's

Extended Information

Mold Remediation - the process of removal and/or cleanup of mold from an indoor environment.

Causes / Growing Conditions
Molds and fungi are found everywhere inside and outside, and can grow on almost any substance when moisture is present. It has been estimated that 40 percent of US homes have some form of mold problem. When molds reproduce they make spores, which can be carried by air currents. When these spores land on a moist surface that is suitable for life, they begin to grow. Molds are essential to the natural breakdown of organic materials in the environment. Mold is normally found indoors at levels that do not affect most healthy individuals. When these levels become abnormally high, as determined by indoor air quality testing or a mold inspection, remediation is recommended to be carried out by a professional remediation company.
Because common building materials are capable of sustaining mold growth, and mold spores are ubiquitous, mold growth in an indoor environment is typically related to an indoor water or moisture problem. Mold growth may also be caused by incomplete drying of flooring materials such as concrete. Leaky roofs, building maintenance problems, or indoor plumbing problems can lead to mold growth inside homes, schools, or office buildings. Another common source of mold growth is flooding.
For significant mold growth to occur, there must be a source of water (which could be invisible humidity), a source of food, and a substrate capable of sustaining growth. Common building materials, such as plywood, drywall, furring strips, carpets, and carpet padding are food for molds. In carpet, invisible dust and cellulose are the food sources (see also dust mites). After a single incident of water damage occurs in a building, molds grow inside walls and then become dormant until a subsequent incident of high humidity; this illustrates how mold can appear to be a sudden problem, long after a previous flood or water incident that did not produce a mold-related problem. The right conditions re-activate mold. Studies also show that mycotoxin levels are perceptibly higher in buildings that have once had a water incident.
Both our indoor and outdoor environment have mold spores present. There is no such thing as a mold free environment in the Earth's biosphere.
Spores need three things to grow into mold:
    Food: Food for spores in an indoor environment is organic matter, often cellulose.
    Moisture: Moisture is required to begin the decaying process caused by the mold.
    Surface: The surface mold is growing on will determine the type and speed of which it will grow.
Mold colonies can grow inside building structures. The main problem with the presence of mold in buildings is the inhalation of mycotoxins. Molds may produce an identifiable smell. Growth is fostered by moisture. After a flood or major leak, mycotoxin levels are higher in the building even after it has dried out.
Food sources for molds in buildings include cellulose-based materials, such as wood, cardboard, and the paper facing on both sides of drywall, and all other kinds of organic matter, such as soap, dust and fabrics. Carpet contains dust made of organic matter such as skin cells. If a house has mold, the moisture may be from the basement or crawl space, a leaking roof, or a leak in plumbing pipes behind the walls. Insufficient ventilation can further enable moisture build-up. The more people in a space, the more humidity builds up. This is from normal breathing and perspiring. Visible mold colonies may form where ventilation is poorest, and on perimeter walls, because they are coolest, thus closest to the dew point.
Because common building materials are capable of sustaining mold growth, and mold spores are ubiquitous, mold growth in an indoor environment is typically related to an indoor water or moisture problem. Leaky roofs, building maintenance problems, or indoor plumbing problems can lead to mold growth inside homes, schools, or office buildings. Another common cause of mold growth is flooding.
Removing one of the three requirements for mold reduces or eliminates the new growth of mold. These three requirements are 1) Moisture, 2) Food source for the mold spores (dust, dander, etc), and 3) Warmth (mold generally does not grow in cold environments).
HVAC systems can create all three requirements for significant mold growth. The A/C system creates a difference in temperature that allows/causes condensation to occur. The high rate of dusty air movement through an HVAC system may create ample sources of food sources for the mold. And finally, since the A/C system is not always running - the ability for warm conditions to exist on a regular basis allows for the final component for active mold growth.
The first step in solving an indoor mold problem is stopping the source of moisture. Next is to remove the mold growth.
Significant mold growth may require professional mold remediation and removal of affected building materials. A conservative strategy is to discard any building materials saturated by the water intrusion or having visible mold growth.
Certain contractors are capable of repairing mold damage - usually by removing the affected areas and eliminating the cause of the excess moisture.
There are also cleaning companies that specialize in fabric restoration - a process by which mold and mold spores are removed from clothing to eliminate odor and prevent further mold growth and damage to the garments.
Improper methods for cleaning mold include exposure to high heat, dry air, sunlight (particularly UV light), ozone, and application of fungicides. These methods may render the mold non-viable, however, the mold and its by-products can still elicit health effects. As noted in following sections, the only proper way to clean mold is to use detergent solutions that physically remove mold. Many commercially available detergents marketed for mold clean-up also include an anti-fungal agent. The most effective way at this point is formal Mold Remediation.
The goal of remediation is to remove or clean contaminated materials in a way that prevents the emission of fungi and dust contaminated with fungi from leaving a work area and entering an occupied or non-abatement area, while protecting the health of workers performing the abatement.
Cleanup and removal methods
The purpose of the clean-up process is to eliminate the mold and fungal growth and to remove contaminated materials. As a general rule, simply killing the mold with a biocide is not enough. The mold must be removed since the chemicals and proteins, which cause a reaction in humans, are still present even in dead mold.