When comparing double glazed sash windows to single glazed windows, the main focus is conservation of energy. Sash windows, which consist of two or more separate panels in frames, at least one of which moves, were originally single glazed. However, with the introduction of central heating and utility bills, more efficient double glazed windows are preferred.
The sash type of window, with at least one movable panel to allow opening the interior of the building to the outside air, was invented in the middle of the seventeenth century in England. Before then, most windows were of the casement type, with panels that opened outward on side hinges.
The term glazing actually refers to the glass used in windows - or to be precise, a transparent sheet of material in a window frame. Some windows are now glazed with clear plastic. Replacing window panes, sometimes called glazing, is really reglazing. A single pane of glass used in a window may be replaced by two panes with an air space in between, for added insulation against sunlight, outside temperature, and noise. Modern windows are often double glazed to start with, of course.
Adding an extra thickness of glass and the insulating space in between increases the insulating factor of the window to a marked degree, both against thermal penetration and noise transference. Installing windows with double panes reduces the need for both heating and cooling so much that the improvement may qualify the homeowner for tax credits from the government.
Other ways of insulating windows include draperies, which can cut the amount of heat and light that enter a home, or the heat and air conditioning that escapes, but block the view and the natural daylight as well. Tinting the glass has the same drawback and only works against sunlight; it does not help to keep hot or cold air from escaping from the inside to the outdoors. There are clear, insulating films that may be applied to the glass, but this is a short term fix.
Double glazed panels will function at peak efficiency as long as the airtight seal is not damaged. Modern windows often have two sheets of glass in wooden, plastic, or metal frames; the effect of panes, if desired, is obtained by false muttons glued to the glass. Modern sashes may open along one side for ease of cleaning. Vintage windows may be fitted with individual double panes by an expert glazier or shipped to a woodworking shop for the change.
Comparing double glazed sash windows to single glazed windows is one of the first steps in improving the energy efficiency of your building and reducing your carbon footprint on the planet.
The sash type of window, with at least one movable panel to allow opening the interior of the building to the outside air, was invented in the middle of the seventeenth century in England. Before then, most windows were of the casement type, with panels that opened outward on side hinges.
The term glazing actually refers to the glass used in windows - or to be precise, a transparent sheet of material in a window frame. Some windows are now glazed with clear plastic. Replacing window panes, sometimes called glazing, is really reglazing. A single pane of glass used in a window may be replaced by two panes with an air space in between, for added insulation against sunlight, outside temperature, and noise. Modern windows are often double glazed to start with, of course.
Adding an extra thickness of glass and the insulating space in between increases the insulating factor of the window to a marked degree, both against thermal penetration and noise transference. Installing windows with double panes reduces the need for both heating and cooling so much that the improvement may qualify the homeowner for tax credits from the government.
Other ways of insulating windows include draperies, which can cut the amount of heat and light that enter a home, or the heat and air conditioning that escapes, but block the view and the natural daylight as well. Tinting the glass has the same drawback and only works against sunlight; it does not help to keep hot or cold air from escaping from the inside to the outdoors. There are clear, insulating films that may be applied to the glass, but this is a short term fix.
Double glazed panels will function at peak efficiency as long as the airtight seal is not damaged. Modern windows often have two sheets of glass in wooden, plastic, or metal frames; the effect of panes, if desired, is obtained by false muttons glued to the glass. Modern sashes may open along one side for ease of cleaning. Vintage windows may be fitted with individual double panes by an expert glazier or shipped to a woodworking shop for the change.
Comparing double glazed sash windows to single glazed windows is one of the first steps in improving the energy efficiency of your building and reducing your carbon footprint on the planet.
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The utilization of double glazed sash windows helps to maintain energy expenditure at a lower level than you would get with single glazing. Sash windows are historically a great method to promote natural energy efficiency.
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