Mold or Water Leak?


mold-on-wallMolds are fungi that can be found everywhere. They reproduce by means of tiny spores; these spores are invisible to the naked eye and float through outdoor and indoor air.mold on plant These fungi can grow on virtually any substance, if moisture is present. Molds can grow on ceilings, walls, under sinks, drywall, ductwork, furniture, wood, among other materials. When there is a lot of moisture present, high humidity, and/or temperatures are above 65°F, mold spores become active and start to grow rapidly. There are many types of mold, and none of them will grow without water or moisture. Outdoors, molds can break down dead organic matter, such as fallen leaves and dead trees. There is no practical way to eliminate all mold and mold spores in the indoor environment. The key to controlling indoor mold growth is controlling the moisture source.



  • Allergic reactions are the most common health effects from mold exposure. Commonly reported symptoms include nasal congestion, shortness of breath, worsening of asthma, sneezing, coughing, headaches, fatigue, and/or irritation of the eyes, skin, nose, and throat.
  • If mold is a problem in your home or school, you should correct the source of the water problem or leak, eliminate sources of moisture, and clean up the mold.
  • The steps you can take to reduce moisture is to use air conditioners and/or dehumidifiers; inspect and repair the ventilation system; maintain indoor humidity at 30 to 60 percent; use exhaust fans to circulate indoor moisture (from cooking, dish-washing, showering) to the outdoors; and remove carpeting in areas of excess moisture (from cooking, sinks, bathtubs and showers).
  • Reduce the potential for condensation on cold surfaces (i.e., windows, piping, exterior walls, roof, or floors) by adding insulation.
  •  Mold can be cleaned from hard surfaces by using water and detergent. If you plan to clean up the mold, it is advised to wear long clothing, a head cover, waterproof boots, heavy rubber gloves, safety goggles, and a particle-filtering mask.
  • Clean and dry any damp or wet building materials and furnishings within 24-48 hours to prevent mold growth.mold diagram
  • There is no practical way to eliminate all mold and mold spores in the indoor environment.
  • To control indoor mold growth, control the moisture source.


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