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Energy Saving Windows
from: Hans DekkerWindows are one of the great energy-wasters of any house. About
25% of the total heat loss is from traditional double glazed
sealed windows. New technology, however, has resulted in more
efficient energy saving windows that can significantly cut down
on heat loss.
Heat loss is not the only concern with windows - they can also
let in heat during summer weather. This can increase the cost of
running an air conditioner.
Modern windows use special materials to treat the window glass.
Low emission coatings are applied to the inside surface which
reduce heat loss through the glass. The windows are constructed
of two layers of glass with an inert gas in between them. This
gas - usually argon - reduces heat loss even more.
To prevent the sun from over-heating the sun during the summer,
the glass can be treated with a reflective coating that reduces
interior temperatures. This type of coating, however, is not
suitable for cold climates because the windows can also be a
source of winter heat during sunny days.
There are many components to energy saving windows that can help
cut down on your heating and cooling costs. The glazings (layers
of glass) can be coated, and some manufacturers may use multiple
glazings to reduce heat loss.
Coated glazings are beneficial in reducing heat loss and they
can also reduce the amount of Ultra Violet (UV) light that
enters the house. UV causes colors to fade in drapes and
carpets, so using this type of window can make these items last
longer.
The frames of energy saving windows can be made from wood,
aluminum, PVC, or composites. The best types are wood or PVC
because the heat loss from the frame itself is reduced. To
further enhance the energy saving qualities of the windows,
non-metallic spacers are used between the glazings.
Windows are sometimes graded according to their insulating
value. Investing in energy saving windows is a great idea for
both new and older homes. The windows cost a bit more than
conventional windows but the savings in your utility bills will
make up the difference in a few years.
About the author:
Hans is author of
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