Real Estate: What Do the Air Ducts Reveal?

Using EPA Guidelines to Inspect Air Ducts

When purchasing an older home, it is important to become familiar with the issues which may affect specific mechanical systems of the home. When in the market for real estate, we should know the warning signs of a "sick" house including signs of complications attributed to mold. For many real estate investors and homebuyers, the signs of mold may be hidden from view and, when given the proper knowledge, the homeowner or investor can spot issues of concern during a visit to the real estate property.

Of the mechanical systems in the home, one area of concern is the air ducts. Because ducts can be made of metal, fiberglass, or even a plastic, a variety of mold related culprits could come into play.

By far, metal ducts are the most efficient in terms of cleanliness as they are generally smooth and hard which allows for easy access of air duct cleaning services. Fiberglass and plastics are by far the most complex to clean due to the porous and rigid nature of the ducts and, when infected with mold, it is highly recommended that they be replaced due to the porous composition as the mold will continue to grow in and around the ducts even after highly technical cleaning is completed.

When in doubt about a possible real estate purchase, the Environmental Protection Agency (EPA) supplies several important pieces of documentation regarding home air ducts and the necessity of cleaning versus replacing. When considering the purchase of real estate, it is advisable to pick up these important documents for review to be certain you understand what the EPAs inspection points may be.

Also, when buying a home, be sure to visually inspect the air conditioning system. Look at the air filter and inspect the outside unit for debris build up. When these items appear to be overcome with excessive debris and contamination, the efficiency of the unit will be greatly minimized thereby subjecting the home to a build up of bacteria and mold within the air ducts.