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2. Glazing (window) - Wikipedia

   en.wikipedia.org/wiki/Glazing_(window)

   The ideal gap size varies by location, but on average it ranges from 15-18 mm thick, giving a final assembly size of 23-26 mm assuming a typical glazing thickness of 4 mm. [9] A double-paned window with air in the gap has an R-value of 2.1, which is much better than the 0.9 that a single pane of glass yields. A triple-paned window, which is not ...

3. Insulated glazing - Wikipedia

   en.wikipedia.org/wiki/Insulated_glazing

   The glass panes are separated by a "spacer". A spacer, which may be of the warm edge type, is the piece that separates the two panes of glass in an insulating glass system, and seals the gas space between them. The first spacers were made primarily of steel and aluminum, which manufacturers thought provided more durability, and their lower ...

4. 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.

5. Laminated glass - Wikipedia

   en.wikipedia.org/wiki/Laminated_glass

   Laminated glass is also used to increase the sound insulation rating of a window, because it significantly improves sound attenuation compared to monolithic glass panes of the same thickness. The interlayer is typically of polyvinyl butyral (PVB), ethylene-vinyl acetate (EVA), ionoplast polymers, cast in place (CIP) liquid resin, or ...

6. Window - Wikipedia

   en.wikipedia.org/wiki/Window

   Multiple panes are divided by mullions when load-bearing, muntins when not. [27] Lattice light is a compound window pane madeup of small pieces of glass held together in a lattice. Fixed window is a unit of one non-moving lite. The terms single-light, double-light, etc., refer to the number of these glass panes in a window.

7. Borosilicate glass - Wikipedia

   en.wikipedia.org/wiki/Borosilicate_glass

   Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.