REHAU Brillant-Design 80 is a premium PVC profile system for windows and doors, built to offer heightened thermal insulation, sound dampening and individual styling. With an 80 mm installation depth and six profile chambers, the system delivers excellent thermal insulation that markedly cuts the energy required for heating. Windows produced from the Brillant-Design 80 profile likewise absorb external noise well, establishing a calm, quiet atmosphere within the room.
This system is distinguished by its high strength and resilience against the weather, guaranteeing a long-lasting and stable construction. The profile surfaces stay smooth and easy to look after. REHAU Brillant-Design 80 expands design freedom through its assortment of shapes, colors and decorative coatings, making it possible to realize elegant, harmonious solutions suited to the most demanding architectural projects, covering both modern construction and reconstruction.
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
An upgraded take on Brillant-Design 80, with an 80 mm depth and 6 chambers for greater energy efficiency. HDF surface.
Core System Specifications:
Glazing Choices:
Tested Performance (per DIN EN 14351-1):
Documentation
An upgraded take on Brillant-Design 80, with an 80 mm depth and 6 chambers for greater energy efficiency. HDF surface.
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 80 stacks up against the closest matches from other brands.
| Specification | Rehau Brillant-Design 80This profile | Veka AluConnect | WDS 76 AD (76 mm) | Kömmerling EuroFutur Elegance |
|---|---|---|---|---|
| Brand | REHAU | VEKA | WDS | Kömmerling |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 80mm | 82mm | 76mm | 70 mm |
| Chambers | 6 chambers | Multi-chamber | 5 chambers | — |
| Glass unit, max | up to 44mm | up to 58mm | up to 48mm | up to 39 mm |
| Thermal (Uw) | 1.1 | 1.1 | 1.1 | ≤ 1.1 |
| Sound (Rw, dB) | ≈45 Rw(dB) | ≈46 Rw(dB) | ≈46 Rw(dB) | ≈ 40 Rw(dB) |
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FAQs
It runs an 80 mm build-in depth with a 6-chamber layout (frame height 120 mm). The frame value is Uf 0.99 W/m²K, clearing the symbolic 1.0 threshold, and window Uw ≤ 1.1 W/m²K (down to 0.9 with the right glass). Sealing uses two EPDM circuits with 8 mm inner and 7 mm outer overlap, hitting airtightness Class 4 and rain Class 9A.
The rebate takes glass units up to 41 mm, ideal for energy-saving double-chamber (triple) units with an argon or krypton fill. Typical fits:
It is a windows profile, so it does not cover sliding or lift-and-slide spans, large terrace doors, or panel weights handled by HST systems. Security tops out at RC3 with anti-burglary hardware, and glazing is capped at 41 mm. For true passive-house Uw values near 0.73, the Geneo PHZ is the right tool, not this profile.
Versus the Brillant-Design 70 (70 mm, 5 chambers, Uw ≤ 1.2, glass to 42 mm) it gains a chamber, 10 mm of depth and reaches Uw ≤ 1.1. The 80 mm Synego goes further with 7 chambers, glass to 51 mm and Uw ≤ 0.94. Brillant-Design 80 is the design-led middle ground: curved styling with near-passive Uf 0.99.
Its signature is a soft, rounded shaping with a 20 mm radius on the exposed sash and frame faces, a clear break from the angular lines of standard windows. The surface is Rehau's HDF (High Definition Finishing) reference gloss, with negligible porosity so dirt cannot take hold. Optional rounded designer glazing beads trace the same profile geometry.
With the right glazing it reaches Rw,p up to 45 dB, which corresponds to noise protection class 5. That is a step above the 70 mm Brillant-Design (≈43 dB) and close to the 80 mm Synego (≈46 dB), helped by the wider 80 mm depth, 6 chambers and dual EPDM seals damping airborne noise.
