Insulated
Glass (IG) units are hermetically sealed combinations of two or more lites
of glass separated by a dry airspace. IG units improve thermal performance,
significantly reducing heating and air conditioning costs. IG units also
reduce interior condensation in cold climates.
Where to use it?
- Fixed and Operable windows
- Storefronts and Curtain Walls
- Sloped/Overhead Glazing
- Nonvision (Spandrel) Locations
Description
Insulated glass units are fabricated according to project specifications. IG units can be constructed using a large variety of glass products to
achieve desired aesthetics, meet design criteria, safety codes and/or to
improve solar control and thermal performance.
Glass options include clear, low iron, Low-E's, standard or high performance
(spectrally selective) tints, reflective, silk-screened, spandrel,
laminated, decorative and wired glass. The glass lites of an IG unit can be
annealed, heat-strengthened, tempered or laminated.
Capabilities
The standard 1" commercial IG unit consists of two lites of
1/4" glass and a nominal 1/2" air space. Custom IG unit designs can be
fabricated with glass thicknesses ranging from 1/8" to 3/4" and with
airspace thicknesses ranging from 3/16" to 7/8" having standard spacer
colors of clear, bronze and black anodized, and mill finish aluminum.
Maximum sizes for IG units are determined by a number of considerations
including thickness, weight, aspect ratio, application and load
requirements.
Applications
Insulated glass units are used in essentially all exterior
building applications, including vertical glazing, sloped glazing, overhead
glazing and skylights, and also in both vision and spandrel (nonvision)
areas. Depending on the glass type used, IG units can be designed for: light
and solar control, sound control, ultraviolet screening (to reduce fading),
hurricane, earthquake and blast resistance, security, bullet resistance, and
decorative applications.