The Xtrem 76 MD system is enhanced with a third (central) sealing circuit, making it ideal for coastal areas. The middle seal creates a "dry chamber" for hardware, protecting metal parts from the corrosive effects of salty sea air. This significantly extends the service life of mechanisms without frequent maintenance.
The six-chamber structure provides excellent sound insulation, blocking noise from city streets or tourist areas. If your goal is to create a quiet and energy-efficient oasis, 76 MD is the best choice in the mid-range segment.
Technical Specifications
The best solution for seaside homes. The third sealing circuit acts as a barrier: it keeps out salt dust and moisture, protecting mechanisms from corrosion, and much better dampens street noise.
System structural parameters:
Glazing and infill options:
Maximum construction dimensions:
Certified characteristics:
Documentation
The best solution for seaside homes. The third sealing circuit acts as a barrier: it keeps out salt dust and moisture, protecting mechanisms from corrosion, and much better dampens street noise.
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 MD stacks up against the closest matches from other brands.
| Specification | Kömmerling Xtrem 76 MDThis profile | Schüco LivIng 82 | WDS 76 MD (76 mm) | Rehau Geneo |
|---|---|---|---|---|
| Brand | Kömmerling | Schüco | WDS | REHAU |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 76 mm | 82mm | 76mm | 86mm |
| Chambers | — | 7 chambers | 6 chambers | 6 chambers |
| Glass unit, max | up to 50 mm | up to 52mm | up to 48mm | up to 53mm |
| Thermal (Uw) | ≤ 0.8 | 0.8 | 0.92 | 0.85 |
| Sound (Rw, dB) | ≈ 47 Rw(dB) | ≈47 Rw(dB) | ≈45 Rw(dB) | ≈50 Rw(dB) |
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FAQs
MD stands for Mitteldichtung (central sealing). The third sealing circuit creates a so-called "dry chamber" inside the profile. This is where the hardware is located. This is critically important for coastal areas, as salt and moisture do not contact metal parts, preventing their corrosion and extending mechanism service life.
Yes, the 6-chamber profile structure and three sealing circuits create a powerful thermal barrier. The 76 MD system blocks transfer of outdoor heat inside the room in summer and retains air conditioner coolness. This allows reducing electricity costs by 30-40%, as climate equipment operates in a more economical mode.
Xtrem 76 MD is one of the leaders in sound insulation. Thanks to three closure levels, sound is dampened much more effectively than in standard systems with two seals. Combined with laminated glass (triplex), the system can provide silence up to 48 dB, cutting off even low-frequency city noises.
The system is designed with RC2 security requirements in mind. The central seal not only improves insulation but also makes external access to locking mechanisms more difficult. Combined with anti-burglar hardware and special glazing, 76 MD windows become a serious obstacle to unauthorized entry.
The Xtrem system uses modern thermoplastic elastomers (TPE) specifically designed for hot climates. They do not dry out or "stick" to the frame. Standard care once a year is sufficient to keep the system fully sealed for decades.
The 76 MD construction has reinforced steel reinforcement and powerful internal partitions. This allows installing modern glazing units up to 50 mm thick, including heavy anti-vandal and multi-layer acoustic packages weighing up to 100 kg or more per sash.
