GEALAN PVC-U window systems are available across the 74 mm and 82.5 mm classes, with rebate- or centre-seal technology to suit every requirement. Signature GEALAN innovations — STV® bonded glazing, IKD® bonding technology and the permanently coloured GEALAN-acrylcolor® surface — combine outstanding thermal performance with lasting quality.
The all-round talent among GEALAN profile systems. A versatile 82.5 mm combination platform with six chambers, offered with either a centre seal or a rebate seal. The centre-seal version achieves a frame Uf value of up to 0.89 W/(m²K), while the rebate-seal version reaches up to 0.97 W/(m²K). One platform serves windows, doors and lift-slide elements — suitable for passive-house and historical-building projects alike.
| Construction Depth | 82.5 mm |
| Number of Chambers | 6 chambers |
| Sealing System | Combination system – centre seal or rebate seal (2 or 3 sealing levels) |
| Uf Value (Frame) | Up to 0.89 W/(m²K) (centre seal) / up to 0.97 W/(m²K) (rebate seal) |
| Glazing Capacity | Up to 54 mm (triple glazing) |
| Applications | Windows, doors and lift-slide elements |
| Glazing Technology | STV® bonded glazing available for larger sizes and stability |
| Suitability | Passive-house and historical-building projects |
The all-rounder among modern PVC profile systems. GEALAN-KONTUR pairs a straight, angular design language and narrow sightlines with an 82.5 mm build depth and three sealing levels. A frame Uf value of up to 0.97 W/(m²K), glazing up to 66 mm with aluminium cladding, and an optimised geometry for burglary resistance up to RC3 make it a refined choice for contemporary architecture.
| Construction Depth | 82.5 mm |
| Sealing System | Centre seal (3 sealing levels, fixed central gasket) |
| Uf Value (Frame) | Up to 0.97 W/(m²K) |
| Glazing Capacity | Up to 56 mm (up to 66 mm with aluminium cladding) |
| Security | Optimised geometry for burglary resistance up to RC3 |
| Design | Straight, angular design with narrow sightlines |
| Surface | GEALAN-acrylcolor® and aluminium cladding in all RAL colours |
| Manufacturing | Optimised for automated fabrication |
A new design idiom for PVC windows in architecture. GEALAN-KUBUS is built for large glass expanses, flooding interiors with light and transparency while giving architects exceptional design freedom. On the 82.5 mm platform it achieves a tested frame Uf value of 0.88 W/(m²K).
| Construction Depth | 82.5 mm |
| Sealing System | Centre seal (3 sealing levels) |
| Uf Value (Frame) | 0.88 W/(m²K) |
| Glazing Capacity | Up to 54 mm |
| Design | Large glass expanses – a new design idiom for PVC windows in architecture |
| Character | Maximum light, transparency and design freedom |
Clear, angular and refreshingly timeless. GEALAN-LINEAR delivers top values in the 74 mm segment, with a frame Uf value of up to 1.0 W/(m²K) and narrow sightlines. Its multi-chamber design offers a high level of stability, thermal insulation, sound insulation and security — ideal for new builds with angular forms and smooth façades.
| Construction Depth | 74 mm |
| Sealing System | Available with rebate or centre seal |
| Uf Value (Frame) | Up to 1.0 W/(m²K) |
| Design | Clear, angular, refreshingly timeless with narrow sightlines |
| Application | New builds with angular forms and smooth façades |
| Character | High stability, thermal and sound insulation in the 74 mm segment |
Cost-effective profile design with optimum material use. The 74 mm S 8000 is a rebate-seal system offered with five chambers for excellent statics or six chambers for enhanced thermal insulation. It combines efficient fabrication with reliable all-round performance — a dependable choice for a wide range of projects.
| Construction Depth | 74 mm |
| Number of Chambers | 5 chambers (statics) or 6 chambers (thermal insulation) |
| Sealing System | Rebate seal |
| Application | Cost-effective profile design with optimum material use |
| Character | Efficient fabrication and reliable all-round performance |
A new, modern and innovative frame. S 9000 NL is a variant of the 82.5 mm S 9000 platform featuring a three-seal system throughout — engineered to meet demanding Northern-European standards for weather-tightness and insulation.
| Construction Depth | 82.5 mm |
| Platform | S 9000 platform variant |
| Sealing System | Three-seal system throughout |
| Character | A modern, innovative frame engineered for demanding Northern-European standards |
| Feature | S 8000 | LINEAR | S 9000 | KONTUR | KUBUS |
|---|---|---|---|---|---|
| Build Depth | 74 mm | 74 mm | 82.5 mm | 82.5 mm | 82.5 mm |
| Seal Type | Rebate | Rebate / Centre | Rebate / Centre | Centre | Centre |
| Sealing Levels | 2 | 2 / 3 | 2 / 3 | 3 | 3 |
| Uf Value W/(m²K) | Efficient class | up to 1.0 | up to 0.89 | up to 0.97 | 0.88 |
| Max Glazing | — | — | 54 mm | 66 mm* | 54 mm |
| Security | Standard | up to RC2 | up to RC3 | up to RC3 | up to RC2 |
| Best For | Value projects | Modern new builds | All-round premium | Design-led architecture | Glass architecture |
*With aluminium cladding. Values are GEALAN system maxima and depend on the chosen configuration and glazing.