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COR 80 Hidden Sash - aluminium and PVC windows Cortizo
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COR 80 Hidden Sash

Elegant straight-line design in which the sash is concealed behind the frame, maximising the glazed surface and the entry of light. This is combined with high thermal and acoustic performance driven by a 45 mm thermal break and a glazing capacity of up to 51 mm, allowing the installation of triple glazing.

Features System technical information System gallery
Features

80 mm aluminium hinged system with concealed sash | Cortizo aluminium and PVC windows for homes

COR 80 Hidden Sash combines minimalist aesthetics with high insulation performance. The sash is hidden behind the frame to reduce the visible section, increase natural daylight and offer a very clean solution for demanding residential projects.

Thermal transmittanceUw ≥ 0.71 W/m²K
Acoustic insulationRw up to 46 dB
Air permeabilityClass 4
Water tightnessClass E1650
Wind resistanceClass C5
AEV reference test 1.23 x 1.48 m / 2 sashes.
System technical information

System technical information

Main data

SectionsFrame 80 mm · Sash 80 mm
Polyamide strip length45 mm
Profile thicknessWindow 1.9 mm
GlazingMax. 51 mm · Min. 36 mm
Max. sash dimensionsStandard solution: width 1300 mm · height 2400 mm · HD hardware for side-hung opening: width 1200 mm · height 3500 mm
Max. sash weight160 kg
NoteCheck maximum weight and dimensions according to typology

Options

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

Opening options

COR 80 Hidden Sash opening options - aluminium and PVC windows Cortizo
Inward opening: side-hung, tilt & turn, bottom-hung and parallel sliding.
System gallery

System gallery

Images prepared to show the concealed-sash aesthetics, the system sections, its opening options and its integration into residential projects.

COR 80 Hidden Sash in a home - aluminium and PVC windows Cortizo
COR 80 Hidden Sash detail - aluminium and PVC windows Cortizo COR 80 Hidden Sash section - aluminium and PVC windows Cortizo COR 80 Hidden Sash technical section - aluminium and PVC windows Cortizo

Compare this system with what you need to improve

Before choosing a window, it helps to relate the system to the real use of the home: thermal insulation, outside noise, air leakage, watertightness, orientation and opening type.

Compare performance Thermal insulation Solutions by need

Would you like to assess COR 80 Hidden Sash for your home?

Request a quote and we will help you analyse whether this system meets your needs for insulation, natural daylight and minimalist design.

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