Benefits of the S 9000 window system
Suitable for triple functional glazing
Suitable for triple functional glazing with a maximum thickness of 52 mm (STV® 54 mm).
Intelligent sealing concept
Intelligent sealing concept with up to three end-to-end sealing levels.
Great heat & sound insulation
Very good heat and sound insulation thanks to the six-chamber design and large installation depth for the frame and sash.
Enhanced statics
Optimised for the use of STV® for dry bonding the pane and sash upstand.
Narrow visible width
Narrow visible width and 15° incline as a design feature.
Optimised heat insulation
Developing a system with the best heat insulation properties does not happen by accident, but rather as a result of focused development work. Our success proves us right. Numerous calculations have produced outstanding heat insulation values. Right from the beginning, the goal of development was to achieve a heat insulation value of Uf – 0.92 W/m²K for the standard combination with steel, making the system suitable for use in passive houses. This was accomplished through the sum of the innovative system design details.
Six chambers end to end
Six chambers end to end in the frame, sash and mullion for outstanding heat and sound insulation.
Perfectly fitting steel
Perfectly fitting steel forms for the perfect balance between statics and heat insulation.
Deep edge cover
Deep edge cover thanks to an upstand height of 26 mm for enhanced heat insulation.
Combinations in the S 9000 system
GEALAN-FUTURA®
The passive house-compatible window, now also in colour
S 9000 plus
System with rigid central gasket
Outstanding break-in resistance
Perfect for large colour elements
Its outstanding static properties make S 9000 plus ideally suited for building large elements with GEALAN-acrylcolor®-surface finishing. GEALAN’s STV® bonding technology means that S 9000 plus windows can be further upgraded for stability and safety of use.
GEALAN-LUMAXX®
Optimised geometries
During development of GEALAN-LUMAXX®, the entire frame geometry was optimised while the profile widths were compressed to a minimum. The designers paid special attention to achieving a balanced relationship between insulating properties and statics, as well as a perfect interplay of components. The symmetrical effect of the narrow single mullion also adds to the flexibility of use in window construction.

Visibly less frame
Visibly less frame
No compromise







