WEATHERIZING YOUR HOME
The federal government recommends that homes be weatherized in
order to reduce the amount of energy needed for heating and
cooling. While weatherization is underway, however, steps should
also be taken to minimize pollution from sources inside the home.
(See Improving the Air Quality in Your Home for recommended
actions.) In addition, residents should be alert to the emergence
of signs of inadequate ventilation, such as stuffy air, moisture
condensation on cold surfaces, or mold and mildew growth.
Additional weatherization measures should not be undertaken until
these problems have been corrected.
Weatherization generally does not cause indoor air problems by
adding new pollutants to the air. (There are a few exceptions,
such as caulking, that can sometimes emit pollutants.) However,
measures such as installing storm windows, weather stripping,
caulking, and blown in wall insulation can reduce the amount of
outdoor air infiltrating into a home. Consequently, after
weatherization, concentrations of indoor air pollutants from
sources inside the home can increase.
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