Innovative Glazing Materials

Innovative Glazing Materials

TitleInnovative Glazing Materials
Publication TypeBook Chapter
Year of Publication2018
AuthorsEleanor S Lee
Book TitleHandbook of Energy Efficiency in Buildings A Life Cycle Approach
6.3
PublisherButterworth-Heinemann, Elsevier Inc.
CityCambridge
ISBN Number978-0-12-812817-6
KeywordsElectrochromics; Thermochromics; Switchable windows; Smart windows; Solar control; Daylighting; Building energy efficiency; Building controls
Abstract

Windows have the unique capability of being able to achieve a net zero energy impact by admitting solar gains in the winter to offset thermal losses and admitting daylight to offset electric lighting. If rejection or admission of solar heat gains and daylight are appropriately timed, then heating, cooling and lighting energy use at the perimeter zone can be reduced to net zero energy levels. Nano-scale switchable coatings on glass have been developed to actively modulate solar intensity and spectral transmission. We provide a brief overview of these switchable glazing materials, discuss the desired performance objectives for such materials, and present results from recently completed monitored studies of state-of-the-art switchable windows, particularly with respect to occupant response and market factors. Careful application of state-of-the-art switchable windows and new material science developments on the horizon can deliver the desired net zero energy performance while meeting critical human factors and market related requirements.

LBNL Report Number

LBNL-2001193