Windows and doors currently 'use' more energy than any other building component. The cost of heat lost through a window over the lifetime of its use in a building is greater than the purchase cost. Energy and money can be saved, and greenhouse gases reduced, by choosing energy efficient windows.
In June 2000 ASHRAE's Standard Project Committee on "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings", SPC 62.2P, recommended and the Board of Directors approved ASHRAE's first complete standard on residential ventilation for public review. The standard is an attempt by the Society to address concerns over indoor air quality in dwellings and to set minimum requirements that would allow for indoor air quality and energy efficiency measures to be evaluated.
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