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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

80 mm aluminium hinged system with concealed sash

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 transmittance
Uw ≥ 0.71 W/m²K
Acoustic insulation
Rw up to 46 dB
Air permeability
Class 4
Water tightness
Class E1650
Wind resistance
Class C5
AEV reference test 1.23 x 1.48 m / 2 sashes.
System technical information

System technical information

Main data

Sections
Frame 80 mm · Sash 80 mm
Polyamide strip length
45 mm
Profile thickness
Window 1.9 mm
Glazing
Max. 51 mm · Min. 36 mm
Max. sash dimensions
Standard solution: width 1300 mm · height 2400 mm · HD hardware for side-hung opening: width 1200 mm · height 3500 mm
Max. sash weight
160 kg
Note
Check 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

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.

Request a quote