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  2. Insulated glazing - Wikipedia

    en.wikipedia.org/wiki/Insulated_glazing

    The window frame is labelled #5, a spacer is indicated as #6, seals are shown in red (#7), the internal reveal is on the right hand side (#8) and the exterior windowsill on the left (#9) EURO 68 wooden window profile with insulated glazing. Insulating glass (IG) consists of two or more glass window panes separated by a space to reduce heat ...

  3. Quadruple glazing - Wikipedia

    en.wikipedia.org/wiki/Quadruple_glazing

    Quadruple glazing (quadruple-pane insulating glazing) is a type of insulated glazing comprising four glass panes, commonly equipped with low emissivity coating and insulating gases in the cavities between the glass panes. Quadruple glazing is a subset of multipane (multilayer) glazing systems.

  4. Window insulation - Wikipedia

    en.wikipedia.org/wiki/Window_insulation

    Window insulation reduces heat transfer from one side of a window to the other. The U-value is used to refer to the amount of heat that can pass through a window, called thermal transmittance, with a lower score being better. [1] The U-factor of a window can often be found on the rating label of the window.

  5. List of physical properties of glass - Wikipedia

    en.wikipedia.org/wiki/List_of_physical...

    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. ...

  6. Glass - Wikipedia

    en.wikipedia.org/wiki/Glass

    [68] [76] Soda–lime–silicate glass is transparent, easily formed, and most suitable for window glass and tableware. [77] However, it has a high thermal expansion and poor resistance to heat. [77] Soda–lime glass is typically used for windows, bottles, light bulbs, and jars. [75]

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