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If you own a home, chances are you've had to fight a battle or two against mold. Why are today's homeowners still wrestling with this age-old problem?
For one, homes now are constructed using predominantly organic building materials such as drywall, wood framing and plywood sheathing. These materials, if exposed to high levels of moisture, are a potential food source for mold.
In addition, increased energy costs and a limited supply of fuel have led to the creation of more energy-efficient buildings. Past construction practices allowed moisture from cooking, bathing and other activities to readily escape. Today's more energy-efficient homes allow less air to escape, which can lead to uncontrolled moisture and humidity levels inside the home.
Concrete masonry, unlike wood studs, joists and wall sheathing, does not provide a food source for mold. Also, unlike wood- and paper-based materials, which may have to be replaced if mold growth is extensive, concrete masonry can be cleaned.
Keep in mind, however, that organic materials such as floor decking, drywall and carpet still might be used inside concrete homes and should be treated to protect against mold. The National Concrete Masonry Association provides these additional tips on preventing mold growth in the home.
* Follow your nose. Musty odors are a sign of mold growth in a building. Look for visible signs of mold or moisture and eliminate the moisture source.
* Keep relative humidity levels at below 40 percent during the heating season and below 60 percent during the cooling season.
* Ensure proper ventilation. Bath fans, kitchen fans and clothes dryers should be vented to the outside.
* Seal outlets, sill plates and doors and windows to minimize uncontrolled air infiltration. Insulating pipes and ductwork in humid spaces can minimize condensation in these areas.
Inspect and clean the condensation drain line on your central air conditioning unit regularly. Inspect the roof, windows and siding after storms to identify missing shingles, damaged flashing and visible water leaks. For more information, visit www.ncma.org. -NU |
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