This article is part 1 of Advances in Glazing Materials for Windows.
Until recently, clear glass was the primary glazing material used in windows. Although glass is durable and allows a high percentage of sunlight to enter buildings, it has very little resistance to heat flow. During the past two decades, though, glazing technology has [...]
This article is part 2 of Advances in Glazing Materials for Windows.
Manufacturers usually represent the energy efficiency of windows in terms of their U-values (conductance of heat) or their R-values (resistance to heat flow). If a window’s R-value is high, it will lose less heat than one with a lower R-value. Conversely, if a [...]
This article is part 3 of Advances in Glazing Materials for Windows.
“Superwindows” now coming on the market can attain high thermal resistance by combining multiple low-e coatings; low-conductance gas fills; barriers between panes, which reduce convective circulation of the gas fill; and insulating frames and edge spacers.
Also, optical properties such as solar transmittance can [...]
