UW- value 1.3

The Schüco Corona CT 70 window system is a combination of time-proven German engineering and aesthetic flexibility. Unlike many competitors, this system offers a choice of sash geometry: the concise Classic, the expressive Cava, or the soft rounded Rondo.

Thanks to robust steel reinforcement and an original gasket configuration, windows made from this profile feature exceptional structural stability and airtightness. This is the ideal choice for those looking not just for a "plastic window," but for an architectural element with decades of durability.

Technical Specifications

Details

German benchmark. Premium system with variable sash design (Classic, Cava, Rondo) and enhanced rigidity.

Energy Efficiency
A
Profile Chambers
5 chambers
Profile Depth
70mm
Profile Height
120mm
Glass Unit
up to 52mm
Thermal Protection
Uw ≤ 1.3 W/(m²·K)
Sound Insulation
≈48 Rw(dB)

System structural parameters:

  • Installation depth: 70 mm (optimal balance of stability and thermal insulation).
  • Profile construction: 5 chambers with optimized geometry for high thermal insulation.
  • Sash design: Three contour options to choose from — Classic (traditional), Rondo (rounded), Cava (with undercut), allowing windows to fit any facade.
  • Sealing: Two levels of EPDM sealing. Silver-grey gasket color for white profiles and black for laminated ones, ensuring an elegant appearance.
  • Reinforcement: Special corrosion-resistant steel reinforcement providing high structural stability even with large sash sizes.

Glazing and infill options:

  • Maximum infill thickness: up to 52 mm (depending on glazing bead type).
  • Glass unit types: Ability to install extra-wide energy-saving and soundproof units, significantly surpassing standard solutions.

Geometry and dimensions:

  • Profile package height (frame + sash): Standard 120 mm — gives the structure a solid appearance and additional rigidity.
  • Visual effects: Minimum visible profile width while maintaining maximum strength.

Certified characteristics:

  • Profile thermal insulation (Uf): 1.3 W/m²K (with standard reinforcement).
  • Sound insulation (Rw): up to 48 dB (sound protection class 5, with appropriate glazing).
  • Burglar resistance: up to RC2 class (formerly WK2).
  • Air permeability: Class 4 (per DIN EN 12207).
  • Water tightness: Class 9A (per DIN EN 12208).

Schüco Corona CT 70

German benchmark. Premium system with variable sash design (Classic, Cava, Rondo) and enhanced rigidity.

Average market price:

For a standard 2-sash tilt-and-turn window (1200 × 1400 mm) with basic double-glazed unit.

Calculate your window
Comfort Index
Heat insulation
6/10
Noise insulation
9/10

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Side by side

Head to Head: Closest Competitors

How Schüco Corona CT 70 stacks up against the closest matches from other brands.

SpecificationSchüco Corona CT 70This profileRehau Euro-design 70Veka Softline 70WDS 6S (70 mm)
BrandSchücoREHAUVEKAWDS
MaterialPVCPVCPVCPVC
Profile depth70mm70mm70mm70mm
Chambers5 chambers5 chambers5 chambers6 chambers
Glass unit, maxup to 52mmup to 40mmup to 42mmup to 40mm
Thermal (Uw)1.31.31.31.3
Sound (Rw, dB)≈48 Rw(dB)≈43 Rw(dB)≈45 Rw(dB)≈40 Rw(dB)

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FAQs

Frequently Asked Questions about Schüco Corona CT 70

What is the main difference between Schüco CT 70 and competitors?

Schüco is the premium segment. Main differences: choice of sash shape (Classic/Cava/Rondo), thicker reinforcement walls for rigidity, and highest quality silver-grey EPDM gaskets.

What glass unit thickness can be installed?

The system allows glass units up to 52 mm thick (with special glazing beads), exceeding the standard 40 mm of most competitors.

How reliable is the hardware in this profile?

The profile is designed for perfect compatibility with Schüco VarioTec hardware, as well as leading German brands (Roto, Siegenia). Rigid reinforcement ensures that sashes won't sag over time.

Are lamination options available?

Yes, a wide range of Schüco AutomotiveFinish colors, wood imitation, and solid matte finishes are available. The profile base color can be matched to the lamination (caramel, brown, anthracite).

What is EPDM gasket and why is it important?

Schüco uses EPDM rubber gaskets, which maintain elasticity at extreme temperatures (from -50 to +100°C) and last significantly longer than plastic (TPE) alternatives.

Is this system suitable for panoramic glazing?

Yes, thanks to the high structural rigidity of the profile, Corona CT 70 allows creating large balcony doors and windows without risk of deformation.