Kömmerling Xtrem 76 AD is the evolution of the popular 76 series, developed specifically for regions with high solar activity, such as Spain. The PVC composition includes special S-class stabilizers that prevent profile deformation under extreme heat. The system with 76 mm installation depth provides excellent insulation, keeping the inside of your home cool and reducing air conditioning costs.
Thin frames let in more Mediterranean light, and two circuits of high-quality sealing reliably protect against dust and noise. This is the "gold standard" for those seeking German quality adapted for the Spanish sun.
Technical Specifications
A universal option for the Spanish sun. The special profile composition is not afraid of heat and does not yellow over time. This is the "golden mean" for those who need reliable German windows without overpaying for extra options.
System structural parameters:
Glazing and infill options:
Maximum construction dimensions:
Certified characteristics:
Documentation
A universal option for the Spanish sun. The special profile composition is not afraid of heat and does not yellow over time. This is the "golden mean" for those who need reliable German windows without overpaying for extra options.
For a standard 2-sash tilt-and-turn window (1200 × 1400 mm) with basic double-glazed unit.
Alternative solutions from other manufacturers
Side by side
How Kömmerling Xtrem 76 AD stacks up against the closest matches from other brands.
| Specification | Kömmerling Xtrem 76 ADThis profile | WDS 76 MD (76 mm) | Rehau Synego | Veka Softline 82 |
|---|---|---|---|---|
| Brand | Kömmerling | WDS | REHAU | VEKA |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 76 mm | 76mm | 80mm | 82mm |
| Chambers | — | 6 chambers | 7 chambers | 7 chambers |
| Glass unit, max | up to 50 mm | up to 48mm | up to 51mm | up to 52mm |
| Thermal (Uw) | ≤ 0.9 | 0.92 | 0.94 | 1.0 |
| Sound (Rw, dB) | ≈ 44 Rw(dB) | ≈45 Rw(dB) | ≈46 Rw(dB) | ≈47 Rw(dB) |
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FAQs
The Xtrem marking confirms that the profile has been certified for use in regions with extremely high solar radiation levels (class S according to international standards). Special modifiers are added to the PVC composition to prevent yellowing and brittleness of plastic under intense ultraviolet radiation typical of the Costa Blanca and southern Spain.
The increased depth to 76 mm allows the use of wider and warmer glazing units up to 50 mm. In addition, the 5-chamber structure of 76 AD is designed according to the principle of optimal isotherm distribution, making the window 25% more efficient than old systems while maintaining a thin and elegant profile appearance.
Kömmerling Xtrem 76 AD combined with a quality acoustic glazing unit provides noise reduction up to 47 dB. This means that busy street sounds or passing traffic will be perceived indoors as barely audible whisper, creating an ideal atmosphere for rest or work.
Kömmerling engineers minimized the visible width of the frame-sash combination to 116 mm. This allows increasing the transparent part (glazing unit) area. You get 5-10% more natural sunlight in the room compared to standard wide PVC profiles, which visually expands the space.
The 76 AD system is equipped with two circuits of high-quality EPDM seal that maintains elasticity for decades. The window has the highest Class 4 air permeability and Class 9A water tightness, guaranteeing no drafts or leaks even during severe coastal storms.
Over 50 lamination options are available for Xtrem 76 AD: from classic wood textures to modern metallic shades. Thanks to UV-resistant film, the color does not fade in the sun, and proCoverTec technology allows ordering windows with a unique matte surface that is pleasant to touch and resistant to dirt.
