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Smart glass, also known as switchable glass, dynamic glass, and smart-tinting glass, is a type of glass that can change its optical properties, becoming opaque or tinted, in response to electrical or thermal signals. This can be used to prevent sunlight and heat from entering a building during hot days, improving energy efficiency. [1]
Single glass windows are no longer in general use. [ 4 ] The insulation provided by double or triple glazing can be further improved by selecting windows with low-e coatings , thermal breaks and argon or other similar gas between the panes, and also by selecting windows with high energy-efficient frames.
With winter weather often comes drafty windows. Incorrectly installed or aging windows can let drafty cold air in, reducing your home's energy efficiency and increasing its heating bill.
Spectrally selective films act by blocking certain wavelengths of the sun's infrared radiation and reject heat without reducing natural light. Security films are applied to glass so when the glass is broken it holds together, preventing dangerous shards from flying about, or making it more difficult for an intruder to gain entry.
In a heating-dominated climate, the second type of low-e coating is more appropriate. This is Passive Low-E, where the goal is to retain heat inside the building. These coatings do not block as much of the short-wave infrared light from the sun, but do block any long-wave infrared light coming from the inside, functioning as somewhat of a ...
Out of an average 340 watts per square meter (W/m 2) of solar irradiance at the top of the atmosphere, about 200 W/m 2 reaches the surface via windows, mostly the optical and infrared. Also, out of about 340 W/m 2 of reflected shortwave (105 W/m 2 ) plus outgoing longwave radiation (235 W/m 2 ), 80-100 W/m 2 exits to space through the infrared ...
Soda–lime glass (for containers) [2] Borosilicate (low expansion, similar to Pyrex, Duran) Glass wool (for thermal insulation) Special optical glass (similar to Lead crystal) Fused silica Germania glass Germanium selenide glass Chemical composition, wt% 74 SiO 2, 13 Na 2 O, 10.5 CaO, 1.3 Al 2 O 3, 0.3 K 2 O, 0.2 SO 3, 0.2 MgO, 0.01 TiO 2, 0. ...
After rigorous wind testing, the Insurance Institute for Business & Home Safety is recommending that homeowners make sure to close all interior doors, as well as all windows and exterior doors.