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Storm windows are windows that are mounted outside or inside of the main glass windows of a house. [1] Storm windows exist in North America, but are uncommon in continental Europe, where double, triple or quadruple glazing is prevalent. Storm windows can be made of glass, rigid plastic panels, or flexible plastic sheets; and may be permanently ...
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.
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.
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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.
South Africa. South West Africa; Bondelswarts: Government victory. Rebellion suppressed; 100 dead, 468 wounded (Bondelswarts) World War II (1939–1945) Soviet Union United States United Kingdom China France Poland Yugoslavia Greece Netherlands Belgium Luxembourg Denmark Norway Czechoslovakia Canada Australia New Zealand India South Africa
This list of mines in South Africa is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
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