Moisture and Mold

• Mold growth is highly dependent on the presence of moisture. This can come from moisture in the air or on surfaces within the environment. An inspection for mold looks at possible moisture sources including insufficient ventilation, plumbing leaks, construction flaws, or any evidence of problems in the past that created a conducive condition for mold to grow, such as hidden flood damage or improperly repaired leaks.
  
  

Mold Inspection Basics

• The ability to accurately assess a mold problem is dependent on a specific knowledge of the biology of molds. The science of mold growths focuses on how they are introduced, how they reproduce, and how they spread. Inspecting for mold must take these issues into consideration to be able to effectively address a mold problem. Another issue to be considered is the indoor environment and any conditions that can lead to mold infestations, such as high moisture and humidity levels.
  
  

Where Mold Grows

• Part of the inspection process involves knowing where mold is likely to grow, based on the indoor air quality (IAQ), the design components of the structure, and areas that are inherently prone to mold growth. According to information from the Environmental Protection Agency, mold growth is most common in bathroom tile, basement walls, areas around windows where condensation collects, and water fixtures such as faucets and sinks. Roof leaks, insufficient humidification and condensation caused by high humidity and cold spots also lead to mold growth.
  
  

Mold Testing

• A major hurdle in assessing a mold problem is identifying the growth. One relatively inexpensive method used by both professionals and individual occupants of a building is the use of tape to collect samples. These samples can then be sent to a qualified laboratory to identify the type of mold in question as to its toxicity and prevalence. Collecting tape samples involves using a 3-inch length of clear (non-frosted) tape that is pressed lightly on suspected mold. The tape sample is then placed in a plastic bag (freezer-type) and sealed.
  
  

Mold Inspection and Testing Costs

• According to the consumer information website costhelper.com, there are various cost factors to consider when deciding on addressing a mold problem. The cost of a professional mold inspection company generally runs between $200 to $600 or more. Home testing kits cost between $20 to $100, and the lab work to identify the mold runs between $30 to $150 per sample. This website reports that the Center for Disease Control (CDC) does not see the necessity in identifying the mold type, only removing the mold. Additionally, they suggest checking the credentials of any mold inspection or testing company for certification by a reputable agency, such as the American Indoor Air Quality Council or the Restoration Industry Association.