Sealed unit technology

Exceptionally flat panes with excellent thermal insulation.

What is a sealed unit?

It is the combination of two or more sheets of glass, where one is of the float type and the other has a thermal insulation layer. Between them there is a cavity filled with argon. The spacer bar filled with molecular sieve ensures that there is no moisture in the cavity between the panes.

Thanks to this technology, which is used in timber windows, the inner pane has a higher temperature, which translates into warmth in the room.

Thermally insulating sealed unit

Also called thermal insulation glass, it has a coating of precious metals including silver, whose task is to reflect heat rays back into the room and so provide protection against heat loss.

The most commonly used sealed units

The most frequently chosen set of sealed units is triple glazing. It consists of three 4 mm panes and two warm edge spacer bars SWISSPACER of 12 mm and 10 mm with the cavities between the panes filled with argon. The thermal transmittance of this unit is 0.8 W/m2K. As standard we use this technology in THERMOLINE 78 mm windows.

In THERMOLINE 90 mm windows we use as standard a package of three 4 mm panes on two warm edge spacer bars SWISSPACER of 16 mm and 18 mm, which gives a coefficient for the whole unit of 0.6 W/m2K.

See how to read the insulation coefficient of a window.