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Window film enhances indoor air quality.

Too much heat in the indoor environment can reduce building occupant productivity and increase the off-gassing of equipment, furnishings, and building components that degrade indoor air quality. In addition, many of the measures taken to increase energy efficiency, such as "tightening" buildings to reduce air infiltration and outflow, degrade indoor air quality.

These problems may be solved by air conditioning, which may require upgrading existing air systems and result in increased operational cost.

The use of window film can reduce the impact of solar heat through existing glass, resulting in lower temperatures and better indoor air quality, often without the need to increase air-conditioning capacity. An added benefit is the potential for reduction of operating cost.

Unfortunately, conventional tinted and reflective window films can reduce the amount of natural light entering a facility. Studies indicate that denying building occupants adequate natural light reduces productivity and well-being. Moreover, darkened facilities often require increased illumination, which may generate more heat--potentially causing more air quality problems and negating the cost-saving benefits of window film.

Spectrally selective window film, however, blocks solar heat without reducing adequate natural light. This film can transmit light while blocking heat. In combination with existing air conditioning, spectrally selective window film can reduce ambient heat, off-gassing, and mold formation while not increasing energy costs.

Spectrally selective window films like V-Kool do not change the color and look of existing glass, so the original appearance of a home or building is not sacrificed to achieve energy efficiency. V-Kool also blocks more heat than tinted films while transmitting almost as much daylight as clear glass.

V-Kool is a trademark of V-Kool, Inc., of Houston, Texas, a sales and marketing distribution company of heat-reflective applied films for residential and commercial architectural, automotive, and specialized vehicular applications. For more information, contact V-Kool, Inc., at (800) 217-7046 or www.v-kool-usa.com.
COPYRIGHT 2006 National Environmental Health Association
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Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Journal of Environmental Health
Geographic Code:1USA
Date:May 1, 2006
Words:307
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