REHAU Brillant-Design 70 is a premium PVC profile system for windows and doors, engineered to deliver elevated thermal insulation, acoustic comfort and bespoke styling. With a 70 mm installation depth and six profile chambers, the system achieves excellent thermal performance that meaningfully lowers the energy needed for heating. Windows built on the Brillant-Design 70 profile also dampen outside noise effectively, fostering a peaceful, quiet environment indoors.
The system stands out for its considerable strength and weather resistance, ensuring a durable, stable structure over time. Profile surfaces are smooth and simple to keep clean. REHAU Brillant-Design 70 broadens design horizons through its range of shapes, colors and decorative finishes, enabling refined and cohesive solutions fit for even the most exacting architectural projects, spanning both new construction and renovation.
Brand
Rehau is synonymous with quality in the world of PVC windows. The German corporation with 75 years of history produces profiles that set industry standards. From economical Euro-Design to innovative GENEO without steel reinforcement — we have a solution for any project.
More about REHAUTechnical Specifications
A premium 70 mm profile with a refined look, a smooth HDF surface and solid thermal insulation. HDF
Styling and Build:
Glazing Choices:
Tested Performance (per DIN EN 14351-1):
Documentation
A premium 70 mm profile with a refined look, a smooth HDF surface and solid thermal insulation. HDF
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 Rehau Brillant-Design 70 stacks up against the closest matches from other brands.
| Specification | Rehau Brillant-Design 70This profile | WDS 7S (70 mm) | Kömmerling EuroFutur Elegance | Cortizo A 70 |
|---|---|---|---|---|
| Brand | REHAU | WDS | Kömmerling | Cortizo |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 70mm | 70mm | 70 mm | 70 mm |
| Chambers | 5 chambers | 6 chambers | — | — |
| Glass unit, max | up to 42mm | up to 40mm | up to 39 mm | up to 40 mm |
| Thermal (Uw) | 1.2 | 1.2 | ≤ 1.1 | ≤ 1.1 |
| Sound (Rw, dB) | ≈43 Rw(dB) | ≈42 Rw(dB) | ≈ 40 Rw(dB) | ≈ 46 Rw(dB) |
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FAQs
Brillant-Design 70 is a 70 mm, 5-chamber PVC profile with a 116 mm sash face. The frame value is Uf 1.3 W/m²K; with a warm glass unit the window reaches Uw ≤ 1.2 W/(m²·K) and can drop to 1.1 W/m²K or lower (DIN EN 14351-1). It runs two sealing circuits with 8 mm seal overlap inside and out, and takes steel reinforcement in frame and sash for stability.
The 70 mm build-in depth allows an infill of up to 41 mm. That comfortably covers:
It is a window profile, not a structural or sliding system. Honest limits:
Against Euro-design 70 it shares the 70 mm 5-chamber base but improves on it: Uw ≤ 1.2 vs 1.3 W/(m²·K), 41 mm glazing vs 40 mm, plus the premium HDF surface and bevelled styling. Stepping up to Synego means 80 mm, 7 chambers, Uw ≤ 0.94 and up to 51 mm glass — more thermal performance, at a higher price than Brillant-Design 70's €420–500 range.
The defining feature is its HDF (High Definition Finishing) surface — a top-tier finish with a rich glossy sheen, negligible porosity and remarkable smoothness, so cleaning is effortless. Exposed faces carry timeless 20° bevels or, depending on the chosen sash, gentle 2 mm radius curves, giving the refined, upscale look the system is built around.
With the right acoustic infill, noise reduction reaches Rw,p up to 45 dB — sound insulation class 5 per VDI 2719. On the weather side it is independently rated air permeability class 4 (EN 12207) and watertightness class 9A (EN 12208), the top water rating, backed by the twin 8 mm sealing circuits against dust, water and drafts.
