IGCC
Insulating Glass Certification Council - directs a certification program of periodic accelerated laboratory testing and unannounced plant inspections to ensure sealed insulating glass unit (IGU) performance is in conformance with ASTM E 774-92. Rating choices are "C" (lowest), "CB", or "CBA" (highest).
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inside snap trim
used in retrofit work to cover the inside gap between the new window and the existing opening.
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insulating glass unit (IGU)
two pieces of glass spaced apart and hermetically sealed to form a unit with an air space between. Heat transmission through this type of glass may be as low as half that without such an air space.
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integral condensation control weep system
built into all Skytech glazing systems. Rafter and horizontal gutters channel any internal condensation through to the sill plate, which is pitched towards the outside, and allows moisture to exit through pre-punched weep holes.
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integral mullion
a frame member trapped within the master frame to separate vents or fixed glass.
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interior glazed
glass glazed from the interior of the building.
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interlock
a design feature which enables sash to engage one another when closed.
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