The Wright Home Inspection
Home Inspection

Mold

MOLD

 

Mold.png

WHY USE A HOME INSPECTOR FOR MOLD?

Home inspectors are trained to detect the conditions that are conducive to mold growth. I find mold frequently when inspecting occupied and vacant homes. Why? Simple: there are so many ways for water to leak into a home from the outside or from an inside plumbing leak. Slow leaks are the worst! A slow leak may not be detected for a long time and can do a lot of damage to the home structure before anyone even realizes there is a problem. Mold is a common byproduct of water leaks, wet foundations, roof leaks and plumbing problems. People may experience illness or even respiratory problems long before they know mold is the cause.

Maybe you already suspect you have a problem but can't figure out why. I enjoy helping people find solutions to problems that may affect their health and the health of their family. Let me put my experience to work for you.

INSPECTING FOR MOLD

A Mold Inspection is very similar to a Home Inspection in scope with a few exceptions. The inspector is focused on conditions that promote mold growth and may use different instrumentation to measure the temperature and relative humidity in rooms or areas of the home where mold is suspected. This may include the whole home, attic, crawlspace and roof. The electrical system may not be inspected if there is no evidence of moisture intrusion in that system. We use our Thermal Imager or Infrared Camera as it is sometimes called, for Home Inspections and Mold Inspections. This is can be an incredibly valuable tool when searching for moisture related problems.

There are several different methods used for taking samples:

  • Swab Sampling

  • Tape Sampling

  • Air Sampling

These methods allow the lab to determine if the sample is in fact mold, if the source of an airborne mold spore is present, and if mold levels are elevated compared to the outside at the time of sampling.

WHAT ARE MOLDS?

Molds are fungi that can be found both indoors and outdoors. No one knows how many species of fungi exist but estimates range from tens of thousands to perhaps three hundred thousand or more. Molds grow best in warm, damp, and humid conditions, and spread and reproduce by making spores. Mold spores can survive harsh environmental conditions, such as dry conditions, that do not support normal mold growth.

What are some of the common indoor molds?

  • Cladosporium

  • Penicillium

  • Alternaria

  • Aspergillus

HOW DO MOLDS AFFECT PEOPLE?

Some people are sensitive to molds. For these people, exposure to molds can cause symptoms such as nasal stuffiness, eye irritation, wheezing, or skin irritation. Some people, such as those with serious allergies to molds, may have more severe reactions. Severe reactions may occur among workers exposed to large amounts of molds in occupational settings, such as farmers working around moldy hay. Severe reactions may include fever and shortness of breath. Some people with chronic lung illnesses, such as obstructive lung disease, may develop mold infections in their lungs.

In 2004 the Institute of Medicine (IOM) found there was sufficient evidence to link indoor exposure to mold with upper respiratory tract symptoms, cough, and wheeze in otherwise healthy people; with asthma symptoms in people with asthma; and with hypersensitivity pneumonitis in individuals susceptible to that immune-mediated condition. The IOM also found limited or suggestive evidence linking indoor mold exposure and respiratory illness in otherwise healthy children. Other recent studies have suggested a potential link of early mold exposure to development of asthma in some children, particularly among children who may be genetically susceptible to asthma development, and that selected interventions that improve housing conditions can reduce morbidity from asthma and respiratory allergies, but more research is needed in this regard.

WHERE ARE MOLDS FOUND?

Molds are found in virtually every environment and can be detected, both indoors and outdoors, year round. Mold growth is encouraged by warm and humid conditions. Outdoors they can be found in shady, damp areas or places where leaves or other vegetation is decomposing.

There are some areas of the home that are always susceptible to mold growth and should be part of routine cleaning to control mold growth. These are:

  • Bathrooms especially shower stalls, bathroom tiles, and shower curtains

  • Window moldings

  • The seal on the refrigerator door

  • Surfaces on and around air conditioners

HOW DO I KNOW IF I HAVE A MOLD PROBLEM?

You can usually see or smell a mold problem. Mold can appear as slightly fuzzy, discolored, or slimy patches that increase in size as they grow. Most molds produce musty odors that are the first indication of a problem. Mold can grow anywhere there is adequate moisture or a water problem. The best way to find mold is to look for signs of mold growth, water staining, warping, or to follow your nose to the source of the odor. It may be necessary to look behind and underneath surfaces, such as carpets, wallpaper, cabinets, and walls. 

TEN THINGS YOU SHOULD KNOW ABOUT MOLD

1. Potential health effects and symptoms associated with mold exposures include allergic reactions, asthma and other respiratory complaints.
2. There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.
3. If mold is a problem in your home or school, you must clean up the mold and eliminate sources of moisture.
4. Fix the source of the water problem or leak to prevent mold growth.
5. Reduce indoor humidity (to 30-60%) to decrease mold growth by:

  • Venting bathrooms, dryers and other moisture-generating sources to the outside

  • Using air conditioners and de-humidifiers

  • Increasing ventilation

  • Using exhaust fans whenever cooking, dishwashing and cleaning

6. Clean and dry any damp or wet building materials and furnishings within 24-48 hours to prevent mold growth.
7. Clean mold off hard surfaces with water and detergent, and dry completely. Absorbent materials such as ceiling tiles, that are moldy, may need to be replaced.
8. Prevent condensation: Reduce the potential for condensation on cold surfaces (i.e., windows, piping, exterior walls, roof, or floors) by adding insulation.
9. In areas where there is a perpetual moisture problem, do not install carpeting (i.e., by drinking fountains, by classroom sinks, or on concrete floors with leaks or frequent condensation).
10. Molds can be found almost anywhere; they can grow on virtually any substance, providing moisture is present. There are molds that can grow on wood, paper, carpet, and foods.