Ventilation
Cooking in the kitchen generates a lot of moisture and odors, and requires
ventilation. While there are various ventilation strategies for a kitchen,
the range hood is by far the most common. The range hood should be used
to capture and exhaust combustion products and vent them directly outdoors.
These range hoods should be sized correctly. For a typical range, the American
Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
and the Home Ventilation Institute (HVI) recommend 100 cubic feet per minute
(cfm). Larger fans may need to have make-up air provided, to prevent excessively
depressurizing the home and potentially causing combustion equipment to
backdraft. Choose a quiet or remote mounted fan so noise doesn't keep you
from using the range hood every time you cook.
Air-sealing Opportunities
Despite good ventilation, moisture-laden air from the kitchen can still
make it's way into wall and ceiling cavities. A kitchen remodeling project
may present an opportunity to improve air-sealing. Electrical, plumbing,
and ventilation penetrations should be sealed where they are accessible
or in any walls that are opened. Depending on how they were constructed,
soffits can be troublesome to air-seal, but if you are replacing cabinets,
you may be able to access space that would otherwise be unreachable.
Flooring
Flooring must not only have a good resistance to harm by water, but should
also prevent water which does get on the floor from penetrating to the subfloor
and space below.
Do not install carpet near water sources or in areas where there is a chronic
moisture problem such as around sinks. To reduce the potential for microbial
growth in the joints of hard surfaces or porous flooring installed near
water sources, be sure to seal the entire surface.
Windows
Kitchen remodeling may present a good opportunity to replace old windows
with new ENERGY STAR® windows. While costs do not always justify the
change from purely an energy savings perspective, there may be other benefits
of new windows. More efficient windows may be less prone to condensation
and related mold growth. Painted window sashes and frames in homes built
before 1978 may contain lead-based paint; this is a special concern because
the friction of opening and closing windows can release lead dust into the
home.
General Recommendations
While remodeling or improving the energy efficiency of your home, steps
should be taken to minimize pollution from sources inside the home. In addition,
residents should be alert to signs of inadequate ventilation, such as stuffy
air, moisture condensation on cold surfaces, or mold and mildew growth and
use the remodeling project to correct underlying problems. While all of
our general recommendations may not apply to your home, you should be aware
of the issues, from radon and lead, to ventilation, and good work practices |
