Properties of the Glass Window

May 10th

Glass window or crystal can consist of a solid sheet or several panels supported by a mullion or a secondary frame. These forms can include laminated glass, created by a vinyl layer joint and two or more pieces of glass, to provide minimal injury following breakage. Tempered glass, another safety design, undergoes a process of thermal heating and cooling to give strength and resist breakage.

Types Of Windows
Types Of Windows

The improvement of the energy efficiency of window panes can include one or more approaches: the change of physical or chemical characteristics; the application of coatings; and assembly of glazing layers. For example, technology includes tinting, low emissivity coatings, and low conductance gas between the layers. Double glazed windows include two layers with a spacer. The trapped air provides some insulation. Triple-glazed windows include three layers of glass or two layers of low-emissivity film (Low-E). These energy-efficient windows reduce heat transfer and condensation. Although triple-glazed windows insulate better than double-glazed windows, some disadvantages include weight gain and cost.

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Between two or more sheets of glass in a sealed unit, inert, dense gases such as argon or krypton provide less thermal conductivity and insulation higher than air. Low-E (Low-E) coatings consist of a thin layer of metal oxide to allow sunlight to transmit, however, block heat from escaping. These coatings reduce radiant heat transfer or total heat flow. Low E coatings help Sun’s ultraviolet (UV) filter that can disappear or dull carpets and upholstery. The different types of low E coatings can achieve low solar gain, moderate solar gain or high solar gain.