Cor Vision vs. Cor Vision Plus: Which Cortizo Sliding Door is Right for Your Project?

The Cortizo Cor Vision series represents the pinnacle of slimline architectural glazing, designed to maximize light and minimize frame. Both the Cor Vision and the Cor Vision Plus offer stunning 20mm–25mm sightlines, but they are engineered to meet fundamentally different project requirements.

Choosing the right system comes down to three key technical factors: size, thermal performance, and automation.

Here is a technical comparison to help you determine which model provides the ideal balance of aesthetics and performance for your build.

Technical Comparison At a Glance

1. The Critical Difference: Size and Weight Capacity

The primary differentiator between the two systems is the sheer scale they can achieve.

• Cor Vision (The Minimalist Standard): This system is perfect for projects requiring a standard large opening. Its panels go up to approximately 3 meters high and can handle sashes up to 400 kg. This is more than sufficient for replacing standard patio doors or glazing most new extensions. Crucially, it maintains the absolute slimmest 20mm sightline.

• Cor Vision Plus (The Oversized Specialist): This is the system for ambitious, grand-scale architecture. It is engineered to handle oversized panels reaching up to 4 meters in height and width—truly replacing an entire wall. To manage this massive scale, the interlock sightline is slightly increased to 25mm, providing the necessary structural strength.

The Verdict on Size:

• If your design requires the absolute slimmest frame (20mm) and panels up to 3m high, choose Cor Vision.

• If your vision requires a monumental glass wall up to 4m high and the slight frame increase is acceptable, choose Cor Vision Plus.

2. Thermal Performance: Double vs. Triple Glazing

The glazing capacity directly impacts a system’s thermal performance (measured by the Uw value).

• Cor Vision: This model supports double glazing up to 30mm thick. This offers excellent insulation for a slimline system, often achieving Uw values around 1.3 W/(m2K). This is highly efficient for most UK and European residential projects.

• Cor Vision Plus: The wider, stronger sash is designed to accommodate triple glazing packages up to 54mm thick. This is key for achieving Passivhaus-level or extremely low-energy performance, with Uw values dropping as low as 0.9 W/(m2K). This superior insulation also dramatically improves acoustic dampening.

The Verdict on Thermal Performance:

• For excellent energy performance with a standard budget, Cor Vision is highly effective.

• For the best possible insulation, superior noise reduction, or where building regulations demand extremely low Uw values, Cor Vision Plus is mandatory.

3. Operation and Automation: Manual vs. Motorised

Moving large glass panels smoothly requires sophisticated engineering, and at the Plus level, automation becomes a necessity.

• Cor Vision: This is strictly a manual system, engineered for smooth operation up to its 400 kg limit.

• Cor Vision Plus: While it can be operated manually up to 400 kg, the Plus system is designed with a hidden, high-capacity motorised option to handle panels weighing up to a staggering 700 kg. This feature is ideal for convenience, accessibility, and integrating with modern smart home systems, especially for the largest $4\text{m}\times 4\text{m}$panels.

The Verdict on Operation:

• For standard use and manual control, Cor Vision is efficient and simple.

• For the convenience of automation or for any panel exceeding 400 kg, Cor Vision Plus is the only choice.

Conclusion: Matching the System to the Vision

Both Cortizo systems deliver the ultimate slimline aesthetic. The choice rests entirely on the scale and performancedemands of your project:

Ready to determine the exact specifications for your build? Contact our technical team to discuss your panel sizes and desired thermal ratings to ensure you select the perfect Cortizo system.