Cortizo Alcover aluminium-clad PVC windows
Clip-on aluminium cladding gives your PVC window a metal exterior finish.
Efficiency inside, architecture outside
A 75 mm PVC frame and 71 mm sash with exterior aluminium cladding clipped onto the profile.
An option for projects that want the insulation of a PVC window with an aluminium exterior and its choice of finishes.
Choose straight, curved or chamfered sashes and straight or curved glazing beads. The aluminium cladding can use butt or mitred joints.
PVC window with exterior aluminium cladding
What Alcover offers
PVC insulation
Reference Uw from 0.9 W/m²K with the specified glazing.
Protected exterior
The aluminium cladding covers the exterior face of the PVC profile.
Choice of exterior finishes
Aluminium finishes to complement the building’s architecture.
Watertightness E1800
Air permeability Class 4 and wind resistance Class C5 in the reference test.
Up to 46 dB
Reference acoustic insulation up to 46 dB with the specified glass.
The specifications at a glance
Air, water and wind test (2 sashes, 1230 × 1480 mm)
| Air permeability | Class 4 |
| Watertightness | E1800 |
| Wind resistance | Class C5 |
Insulation
| Thermal transmittance (Uw) | ≥ 0.9 W/m²K |
| Acoustic insulation | Rw up to 46 dB |
Sash dimensions
| Window | 360-1300 × 450-2300 mm |
| Balcony door | 360-1300 × 600-2400 mm |
| Maximum weight | 130 kg |
Openings
| Opening types | Inward-opening hinged and tilt-and-turn |
| Hardware | Optional security hardware |
Reference values according to Cortizo. Final performance depends on glass, hardware, dimensions and assembly. Non-contractual information.
Cortizo Alcover: a PVC window with an aluminium exterior
Cortizo Alcovercombines a PVC profile inside withclip-on aluminium cladding outside, bringing together PVC insulation and an aluminium appearance.
Two materials in one assembly
- PVC window insulation: reference Uw from 0.9 W/m²K.
- Exterior aluminium cladding with a choice of finishes.
- Straight, curved or chamfered sash designs.
- Cladding assembled with butt or mitred joints.
When to consider Alcover
Cortizo Alcoveris an option where an aluminium exterior is preferred to match other façade elements while retaining a PVC window underneath. The manufacturer quotesUw from 0.9 W/m²Kand acoustic insulation up to46 dB for the specified test assemblies. Actual performance depends on the glazing, dimensions, hardware and installation.
The clip-on cladding provides an exterior covering for the PVC profile. For exposed coastal locations, we also assess the hardware, glazing and installation details.
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New buildings and renovation
Alcover can help coordinate a PVC window with aluminium façade elements, glazing or composite panels. In renovation, it offers a different exterior finish while retaining the underlying PVC assembly. Balcony doors in the same range and a compatible Cortizo Isolation shutter box can be considered as part of the opening.
Frequently asked questions
How do Alcover and AluConnect differ?
Alcover uses a 75 mm PVC frame with clip-on aluminium cladding. AluConnect uses an 82 mm system with a central seal. We show you the assemblies and compare their specific options in the showroom.
Can Alcover cladding be fitted to any existing PVC window?
No. Alcover is a Cortizo system intended for compatible PVC profiles. Compatibility needs to be checked rather than treating it as a universal retrofit. VEKA AluConnect is a separate alternative system.
Which exterior finishes are available for Alcover?
The aluminium cladding is available in different finishes. We show you the available samples and confirm the finish for your order.
Does Alcover’s cladding add weight to the window?
It adds some weight, which is accounted for within the system’s design. The complete sash must stay within the specified size and weight limits for its hardware.
Would you like a quote?
We measure, manufacture and install your made-to-measure windows in Alicante and the surrounding area. No-obligation visit and quote.


