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Insulating Glass


Insulating glass consists of two or more plies of glass enclosed by a spacer. Insulating glass increases a window’s thermal performance by reducing the heat gain or loss.

Velocity’s insulating glass units are sealed with a primary seal and a secondary seal of silicone. Insulating units are designed to absorb stress on the unit caused by thermal expansion and pressure, provide a barrier to water and moisture infiltration, provide a gas-tight seal to prevent loss of the argon gas fill and create a barrier that reduces condensation

SIZING: Min: 10” x 20” | Max: 96” x 168”
SPACER: 4SG warm edge spacer | black silicone
FILL: Argon filled IGU’s
OFFSETS: 1- and 2-sided

Spacer / Sealant Options

Velocity’s insulating glass units incorporate 4SG, a warm-edge thermoplastic spacer with integrated desiccant which completely replaces conventional metal or plastic spacers, desiccant and primary seal.

Click here to learn more about the Velocity 4SG Spacer.


SPACER WIDTHS: 3/8″, 7/16″, 1/2″, 9/16″, 5/8″

SIGHTLINES: 1/2″, 5/8″, 3/4″

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