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COR 70 Hidden Sash C16 ST - aluminium and PVC windows Cortizo
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COR 70 Hidden Sash C16 ST

Hidden sash hinged system compatible with any standard channel 16 hardware. Its attractive design withceals the sash behind the frame, reducing the visible aluminium section to 73.8 mm. This makes it possible to achieve a glazed surface of up to 85% of the total window area, helping more light enter the interior. Its avant-garde appearance is complemented by the option of hidden drainage and withcealed hinges.

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Features

COR 70 Hidden Sash C16 ST hidden sash hinged system | Cortizo aluminium and PVC windows for homes

70 mm hidden sash system with standard channel 16 hardware, high thermal and acoustic performance, minimalist aesthetics and maximum natural light.

Thermal transmittanceUw ≥ 0,93 W/m²K
Acoustic insulationRw hasta 45 dB
Air permeabilityClass 4
WatertightnessClass E1200
Wind resistanceClass C5
AEV reference test: 1.23 x 1.48 m / 2 sashes. CSTB laboratory DTA certification.
System technical information

System technical information

Main data

SectionsFrame 70 mm · Sash 70 mm
Polyamide strip length35 mm
Profile thicknessWindow 1,6 mm
GlazingFixed: máximo 40 mm, mínimo 27 mm. Window: máximo 38 mm, mínimo 24 mm.
Maximum sash dimensionsWidth (L) 1300 mm · Height (H) 2400 mm
Maximum sash weight150 kg
NoteCheck maximum weight and dimensions according to typology.

Possibilities

Security hardware - aluminium and PVC windows CortizoSecurity hardware
Concealed hardware - aluminium and PVC windows CortizoConcealed hardware
Concealed drainage - aluminium and PVC windows CortizoConcealed drainage

Opening possibilities

Opening possibilities COR 70 Hidden Sash C16 ST - aluminium and PVC windows Cortizo
Side-hung, tilt-and-turn and bottom-hung.
System gallery

System gallery

Local images have been incorporated into the project so the COR 70 Hidden Sash C16 ST page does not depend on external resources.

COR 70 Hidden Sash C16 ST instalación - aluminium and PVC windows Cortizo
COR 70 Hidden Sash C16 ST detalle de perfil - aluminium and PVC windows CortizoCOR 70 Hidden Sash C16 ST sección técnica - aluminium and PVC windows CortizoCOR 70 Hidden Sash C16 ST instalación edificio - aluminium and PVC windows Cortizo

Would you like to assess COR 70 Hidden Sash C16 ST for your home?

Request a quote and we will help you assess whether this system fits your insulation, comfort, design and performance needs.

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Aluminium and PVC windows: useful guidance for choosing well

Choosing aluminium and PVC windows is not only a matter of price. In every home, orientation, climate, outside noise, opening size, façade design and daily use all influence the final decision. Cortizo Windows brings together solutions designed to improve thermal insulation, acoustic insulation, security, natural light and energy efficiency while preserving the character of each project.

Aluminium stands out for its strength, durability, dimensional stability and design possibilities, especially when large openings, slim profiles or highly customised finishes are required. PVC offers excellent insulating performance, low maintenance and a strong balance between comfort and value for home renovation. In both cases, the right choice should take into account the glazing, opening type, installation quality, orientation and the real needs of the household.

Beyond comparing materials, it is useful to define what needs to be improved: reducing energy loss, gaining more silence, increasing security, simplifying maintenance, renewing the appearance of the home or preparing it for more efficient consumption. The Cortizo Windows retail network helps assess each project, identify the most suitable solution and request a professional quotation for replacing windows with a close, project-focused service, without spam or unrelated calls.