may choose a window with standard glass or choose Tempered
or Laminated glass options.
Tempered glass is a type of safety glass processed by
controlled thermal or chemical treatments to increase
its strength compared with normal glass. Tempering creates
balanced internal stresses which cause the glass, when
broken, to crumble into small granular chunks instead
of splintering into jagged shards. The granular chunks
are less likely to cause injury.
glass is a type of safety glass that holds together
when shattered. In the event of breaking, it is held
in place by an interlayer, typically of polyvinyl butyral
(PVB), between its two or more layers of glass. The
interlayer keeps the layers of glass bonded even when
broken, and its high strength prevents the glass from
breaking up into large sharp pieces. This produces a
characteristic "spider web" cracking pattern
when the impact is not enough to completely pierce the
Laminated glass is normally used when there is a possibility
of human impact or where the glass could fall if shattered.
Skylight glazing and automobile windshields typically
use laminated glass. In geographical areas requiring
hurricane-resistant construction, laminated glass is
often used in exterior storefronts, curtain walls and
windows. The PVB interlayer also gives the glass a much
higher sound isolation rating, due to the damping effect,
and also blocks 99% of incoming UV radiation.