The best way to control mold is to control moisture. While we cannot, and should not, eliminate mold from the environment, we can control it and all but eliminate it from our homes. Here's how.
Misunderstandings about mold
One common misunderstanding most homeowners have is that mold grows only on paper, wood or other organic materials. But mold can grow on any surface, including glass, fiberglass and steel.
Mold only needs three things to grow:
• mold spores found in the air
• moisture
• and a food source
Because only “clean room” technologies — which are too expensive and unnecessary for most homes — can eliminate mold spores, the most beneficial way to control mold is to control moisture.
Moisture control
“Controlling moisture in buildings is not only necessary, but it is also achievable through education and understanding some fundamental building principles,” says Frank Nunes, vice chairman of Responsible Solutions to Mold Coalition. “Some in our industry believe that water intrusion is inevitable and therefore mold-resistant products are the answer. This is simply not the case. While mold-resistant products can play an important role, dry buildings and homes are achievable through careful design, construction and maintenance.”
Mold can be stopped in its tracks, but only if moisture is minimized or eliminated. Therefore, leaks should be corrected as soon as they become apparent. Building experts urge homeowners to be aware of these telltale signs of mold:
• dampness
• odors
• discoloration
• peeling paint
• condensation
• compacted insulation
• actual mold outbreaks
Here's what to keep in mind with mold prevention:
• Grading around your home should be away from the structure, not toward it.
• All building materials must be kept dry prior to use, and they should not arrive on the job site before they are needed; this helps minimize the absorption of ambient moisture.
• Proper sequencing during construction is critical. For example, wallboard should not be installed until the building is closed in.
• Exterior walls are going to get wet, so the key is to make sure that they are designed in a way that allows them to dry out. Weather-resistant barriers are essential.
• Make sure that irrigation systems are directed away from your home.
• Check bathrooms, kitchens, basements and attics monthly for signs of mold incursion.
• When mold is discovered, find out where the moisture is coming from and make sure it is stopped.
Brad Spychalski is an Associate Online Editor for HANDY and the Associate Editor of The History Channel Magazine.