Low-E Glass Gains Ground

Ten years ago, EBN reported on the growing popularity of low-emissivity (low-e) glazing, which allows visible light to enter buildings while reducing unwanted heat gain and heat loss. Introduced in the early 1980s, with the energy crisis still fresh in America’s mind, low-e glazing gained market share quickly, and by July 1996 the glazing industry had produced its billionth square foot (see EBN Vol. 5, No. 4). Low-e glazing has been building momentum ever since, with sales now approaching one billion square feet (93,000,000 m²) each year, according to Stephen Selkowitz, who heads the Building Technologies Department at Lawrence Berkeley National Laboratory (LBNL).
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