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Storm windows are an inexpensive add-on: even the best storm windows—three track exterior windows with low thermal emission—will cost a small fraction of the price of standard replacement windows. [citation needed] Interior storm windows can, however, produce condensation and be visually obstructive; exterior storm windows can also have a ...
Fitting a second pane of glass to improve insulation began in Scotland, Germany, and Switzerland in the 1870s. [2] Insulating glass is an evolution from older technologies known as double-hung windows and storm windows. Traditional double-hung windows used a single pane of glass to separate the interior and exterior spaces.
Double-paned windows are the norm in new residential installations, as they offer substantial energy savings in comparison to single-paned glass. Each individual glass pane has poor insulation properties, with an R-value (insulation) , or measure of an object's resistance to heat conduction, of 0.9.
Sep. 27—JAMESTOWN — Storm windows help prevent any air infiltration in homes with older, single-pane glass windows, according to Clyde Schmautz, manager of Infinity Building Services. "If you ...
Energy-efficient houses in cold climates often feature triple-glazed windows with a U-value between 0.19 and 0.26. In moderate and hot climates, quality double-glazed windows with a U-value of about 0.30 are generally a more cost-competitive and effective choice. [6]
Researchers found that on average, quad-pane windows saved 24% heating and cooling energy compared with a high-performing double- pane window. For new construction and window replacements, the quad-pane windows have payback between one and six years, depending on climate zone and utility rates. [12]
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