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What type of window may be prohibited by fire codes because of its combustibility?

Windows can have different glazing materials. What type of window may be prohibited by fire codes because of its combustibility?

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A.
Tempered

B.
Polycarbonate acrylic

C.
Glass-clad polycarbonate

D.
Laminated

Explanation:
B: When designing and building a facility, windows are among the items that need to be addressed from a physical security point of view. In addition to their
placement and accessibility to intruders, the following issues should be considered: translucent or opaque requirements, alarms, and whether they are
shatterproof. Windows should be properly placed (this is where security and aesthetics can come to blows) and should have frames of the proper strengths, the
necessary glazing material, and possibly a protective covering. The glazing material, which is applied to the windows as they are being made, may be standard,
tempered, acrylic, wire, or laminated on glass. Polycarbonate acrylics are stronger than standard glass, tempered glass, and regular acrylic glass. Like regular
acrylics, polycarbonate is made out of a type of transparent plastic. However, because of their combustibility, their use may be prohibited by fire codes. Don’t
confuse polycarbonate acrylics with glass-clad polycarbonate, which is the strongest window material available and is resistant to fire, chemicals, breakage, and
other threats.
A is incorrect because tempered glass is not combustible. Tempered glass is made by heating the glass and then suddenly cooling it. This increases its
mechanical strength, which means it can handle more stress and is harder to break. It is usually five to seven times stronger than standard glass. When it does
break, tempered glass usually shatters into small pieces instead of sharp shards. This way tempered glass is less likely to cause severe injury than standard glass.
Because of its safety and strength, it is used for vehicle windows, glass doors and tables, and cookware.
C is incorrect because glass-clad polycarbonate is resistant to a wide range of threats, including fire. Thus, they differ from polycarbonate acrylic windows,
which may be prohibited by fire codes because of their combustibility and because they are made out of plastic. Glass-clad polycarbonate is the strongest window
material, and as such is much more expensive than other glazing options. Glass-clad polycarbonate windows would be used in areas that are under the greatest
threat.
D is incorrect because laminated glass windows are not combustible. Laminated glass has two sheets of glass with a plastic film in between. This added plastic
makes it much more difficult to break the window. When the glass is impacted it produces a cracking pattern that resembles a spider web. As with other types of
glass, laminated glass can come in different depths. The greater the depth (more glass and plastic), the more difficult it is to break. Laminated glass windows are
often used for car windshields, exterior storefronts, and skylights.

One Comment on “What type of window may be prohibited by fire codes because of its combustibility?

  1. joe says:

    Polycarbonate acrylics are stronger than standard glass, tempered glass, and regular acrylic glass. Like regular acrylics, polycarbonate is made out of a type of transparent plastic. However, because of their combustibility, their use may be prohibited by fire codes.
    聚碳酸酯丙烯酸樹脂比標準玻璃,鋼化玻璃,並定期丙烯酸玻璃更強。像普通的丙烯酸樹脂,聚碳酸酯是做出來的一類透明塑料。然而,因為它們的可燃性的,它們的使用可能由防火規範禁止。




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