Cortizo COR Vision is a jewel of modern architecture, conceived for those who will not put up with visual barriers. It is more than a window; it is a design statement that reshapes how space is perceived. The system's hallmark is a central sash interlock just 20 mm wide, currently among the slimmest figures in the world. With the frame concealed and able to recess fully into floor, ceiling and walls, all you see is glass. The glazed area reaches 91%.
For all its visual weightlessness, COR Vision is a powerful engineering structure. It carries sashes weighing up to 320 kg while gliding smoothly and silently on stainless steel rails. The system has a thermal break and makes unique architectural forms possible: corner joins without a mullion (90-degree angle), pocket-door layouts (Galandage) and automated solutions. This is the choice for luxury villas and prestigious apartments.
Brand

Cortizo is the flagship of Spanish industry with headquarters in Galicia. The brand is famous for Cor Vision aluminum systems with virtually invisible profiles. If you need panoramic glazing for a villa or modern home — Cortizo is unrivaled.
More about CortizoTechnical Specifications
Details
A minimalist icon. This premium sliding system carries a record-slim 20 mm interlock that conjures the illusion of an unbroken glass wall, melting away the divide between interior and landscape.
Structural specifications:
- Build depth: Frame - 116 mm (2 tracks), 182 mm (3 tracks). Sash - 37 mm.
- Exposed interlock face: JUST 20 mm (central joint).
- Operation style: Minimalist sliding. On offer: 2-6 sashes, Galandage (pocket door), open 90-degree corner with no mullion.
- Thermal break: RPT technology. Polyamide inserts from 16 to 24 mm.
- Alloy: 6063 T5 aluminum alloy.
- Fitting: Optionally sink the frame fully around the perimeter for a "frameless" glazing look.
Glazing choices:
- Peak infill thickness: up to 30 mm.
- Infill range: High-strength tempered glass, laminated glass. Structural glazing (bonded glass unit) is mandatory.
Largest sizes and mechanics:
- Sash limits: Width up to 2500 mm, Height up to 3000 mm.
- Sash mass: up to 320 kg.
- Running tracks: Reinforced profiles topped with stainless steel overlays.
- Wheels: High-strength bearings (stainless steel), tucked inside the frame.
Tested performance:
- Window heat transfer (Uw): from 1.3 W/m2K.
- Watertightness: Class 7A.
- Air tightness: Class 4.
- Wind load rating: Class C5.
- Acoustic damping: up to 41 dB.
Cortizo COR Vision
A minimalist icon. This premium sliding system carries a record-slim 20 mm interlock that conjures the illusion of an unbroken glass wall, melting away the divide between interior and landscape.
For a 2-panel sliding system (3000 × 2200 mm) with basic double-glazed unit.
Compare with Similar Profiles
Alternative solutions from other manufacturers
Cortizo 4900 Corredera
Cortizo COR Vision PLUS
Schüco ASE 60
Schüco ASE 80.HI
Schüco ASE 67 PD
Side by side
Head to Head: Closest Competitors
How Cortizo COR Vision stacks up against the closest matches from other brands.
| Specification | Cortizo COR VisionThis profile | Schüco ASE 60 | Rehau Panorama Swing | Kömmerling PremiLine |
|---|---|---|---|---|
| Brand | Cortizo | Schüco | REHAU | Kömmerling |
| Material | Aluminium | Aluminium | PVC | PVC |
| Profile depth | — | — | — | 80 mm (frame) |
| Chambers | — | — | — | — |
| Glass unit, max | up to 30 mm | up to 40mm | up to 40mm | up to 28 mm |
| Thermal (Uw) | ≤ 1.3 | 1,1 | 1.3 | ≤ 1.3 |
| Sound (Rw, dB) | ≈ 41 dB | ≈ 41 dB | — | ≈ 34 Rw(dB) |
See all sliding profiles compared.
Open full comparisonLeave a Review
Customer Reviews
Find out what people are saying about it
No reviews yet. Be the first!
Related Posts

PVC or Aluminium Windows: Which Is Better for Your Spanish Home?
PVC and aluminium are the two frames you will be quoted for almost every window in Spain, and the right answer changes from Valencia to Vigo. This guide compares them head-to-head on insulation, price per m², coastal durability, sizes, colours and noise, then gives a clear verdict by scenario and region.

The Spanish Aluminium Window & Door Market: 2026 Report
Aluminium is Spain's home-team window material — and the customs data shows why. Spain net-exports roughly $1.2 billion of aluminium extrusions and finished windows a year, shipping to France, the UK and Latin America, led by Galician giants like Cortizo. A full data report on the aluminium value chain, who makes it, the thermal-break problem, and where PVC is eating in.

How to Choose a Sliding Door for Your Terrace or Garden
Corredera, lift-and-slide, folding or minimalist — Spain's terrace doors come in very different forms, and the wrong choice means draughts, trip hazards or a door you can barely move. This guide walks through the types, thermal performance, thresholds, security and realistic 2026 prices so you can compare quotes with confidence.

Panoramic Windows and Patio Doors: Bringing Spain's Light Indoors
Floor-to-ceiling glass and near-frameless sliding walls turn Spanish living rooms into light-filled spaces with uninterrupted views. But large-format glazing brings real questions about solar heat, structure, security and cost. Here's how panoramic systems work and how to specify them well in Spain's climate.

Glass Curtains and Terrace Enclosures: Turn Your Terrace into a Year-Round Room
Frameless glass curtains, framed enclosures, sliding and folding glass, thermal vs non-thermal systems — this guide explains how to close a terrace in Spain, what it costs per m², and the community-of-owners rules that catch buyers out. Compare verified enclosure specialists on Estimia.

Soundproof Windows: How to Cut Outside Noise in Spain
Traffic, terraces, airports and nightlife — Spanish streets are loud, and your windows are the weakest link. This guide explains acoustic ratings (dB and Rw), exactly what makes a window quiet, the realistic noise reduction you can expect, and precisely what to specify in a quote so you can compare verified companies on equal terms.
FAQs
Frequently Asked Questions about Cortizo COR Vision
What is the visible sightline on the Cortizo COR Vision?
The central meeting joint between sashes shows an exposed interlock of just 20 mm, while the sash itself is only 37 mm. The frame depth runs 116 mm on a 2-track layout and 182 mm on 3 tracks, but it can be sunk fully into walls, floor and ceiling for a near-frameless glass look.
How large and heavy can a single COR Vision sash be?
Each sash can reach 2500 mm wide and 3000 mm high, carrying a mass of up to 320 kg. It runs on stainless-steel high-strength bearing wheels tucked inside reinforced tracks topped with stainless overlays, and the system supports 2 to 6 sashes, a Galandage pocket configuration, or a 90-degree corner with no mullion.
What glazing does the COR Vision accept?
Infill thickness reaches up to 30 mm, and the glass must be bonded as a structural (mandatory) glazing unit. Accepted infill includes:
- High-strength tempered glass
- Laminated glass
What thermal and weather performance does COR Vision deliver?
Built in 6063 T5 aluminium with RPT thermal break and polyamide inserts from 16 to 24 mm, it reaches a window Uw from 1.3 W/m2K and an A+ energy rating. Tested ratings are watertightness Class 7A, air tightness Class 4 and wind load Class C5, with acoustic damping up to 41 dB.
How does COR Vision compare to COR Vision PLUS, COR 4200 and 4900 Corredera?
COR Vision (Uw from 1.3 W/m2K, glazing to 30 mm) is the entry minimal-frame slider. COR Vision PLUS pushes to 180 mm depth, 54 mm glazing and Uw 0.9 W/m2K. COR 4200 is a conventional Galandage slider (Uw 1.6 W/m2K), and 4900 Corredera is the hi-tech 70 mm option (glazing to 36 mm).
When is COR Vision not the right choice?
Structural bonded glazing is mandatory, so it demands top-level installer skill and openings detailed in at the construction stage. If you do not need a near-frameless glass wall, a conventional slider such as the COR 4200 or 4900 Corredera, or PVC C 70, will suffice for less. Note its acoustic ceiling is 41 dB, below the deeper PLUS and several window systems.












