Nakajima Glass Company, Inc.

Insulating Glass Unit

Insulating Glass Unit / Twin Glass

Thermal InsulationCondensation Prevention
Structure Diagram
Twin Glass structure (dry air sealed between two sheets of glass)

Twin Glass is highly insulating glass made by holding multiple sheets of glass at a constant interval with spacers and sealing the perimeter to trap air inside. Compared to single-pane glass, it provides effects such as reduced heating and cooling costs, reduced air conditioning unevenness, and condensation suppression, making rooms more comfortable spaces.

Twin Glass usage example
Variations

Edge insulation: Insulating glass units have metal spacers around the perimeter to hold the glass, which reduces the insulating performance in this area. As an option to improve the performance degradation in this glass perimeter area, you can also choose a resin spacer type that has better insulating performance than metal.

Spacer examples (aluminum, resin)