Insulating glass is available in cylindrical, conical and sphericle bending. This can may be composed of different glass types achieving various protecting qualifications in one and same unit together. Several notable characteristics can be reached and individually adapted to functional requirements, e.g.:

• Sun protection
• Heat protection
• Acoustic protection
• Safety (e.g. guarding against falling, burglar resistance, bullet resistance)

It is optimally selected according to the necessary technical defaults. The maximum producible dimensions depends on the requested glass shape as well as used glass types. At the moment we are able to achieve a Ug-Value up to 1,1 W/m2K for double-glazed units in accordance with DIN EN 673. With an curved triple-glazed unit, even a Ug-value up to 0,5 W/m2K in accordance with DIN EN 673 is possible.
The feasibility, as well as the technical values of curved glass depends decisively on several factors, which among themselves in dependence. These are the glass structure, type of glass, glass size, bending angle, radius and glass thickness.

Cavity width:
• 6, 8, 10, 12, 14, 16 or18 mm

Filled cavity
• Air
• Argon, Krypton gas-filled


Sun protection
Heat protection

Primarily hard coated glass is flexible

COOL-LITE (e.g. ST 150)
Sun-Guard Solar
Silverstar Sunstop T

Some glass is available on
clear glass as well as on
glass which has been body-tinted

Planitherm Ultra N II

K – Glass

Acoustic protection

Superstructures with GLABIE laminated glass achieve good sound insulation even as monolithic fixtures
Example: laminated glass 8/2 = 37 dB

Superstructures with
"Stadip Silence" (sound insulation interlayer) are also available

No approved values for curved glass

See laminated glass

Laminated glass with build-in alarm wire

No approved values for curved glass

Characteristics (Döring)

• Production with Super Spacer ® TriSeal
• No-metal spacer system, which consist of flexible silicone foam
• Warm-edge-technology, thereby excellence features in thermal isolation
• Double edge seal
• Glass superstructures are often subject to geometry
• Gas filling (Argon, Krypton) available at Döring
• Level insulation with UV-resistant edge seal
• The closer the radius, the smaller the format, the higher the load on the edge seal due to the flexural strength (less pumpable)
• Calumen (Ug, Light transmission, etc.) values can only be mentioned according to values of comparable planar glass superstructures
• Specific requirements to glazing rebate
see technical instructions

We produce insulating glass units in accordance with EN 1279.
For more information of marking products please contact:

Remark: technical modifications and errors excepted!