Built for better thermal performance.
A deeper thermally broken aluminium window system designed for projects where insulation, substantial glazing and clean contemporary detailing all need to work together.
The 80 mm frame depth, 45 mm polyamide strip and glazing capacity up to 51 mm make COR 80 especially relevant to projects with stronger energy-performance requirements.
High performance without making the window look heavy.
Compatible hidden-sash configurations allow COR 80 to retain a cleaner appearance while still providing practical side-hung and tilt & turn opening options.
Clean when shut
Hidden-sash detailing allows the opening sash to read more like a fixed glazed element from the front.
Gentle ventilation
The top of the sash tilts inward where background ventilation is needed without fully opening the window.
Full inward opening
The sash can open from the side where greater ventilation or easier access to the glazing is required.
That makes COR 80 particularly suited to contemporary homes and lower-energy projects where window performance is part of the architectural specification rather than an afterthought.
The extra depth is there for a reason.
COR 80 uses a deeper thermally broken aluminium platform, increased polyamide separation and insulated frame and sash construction to push the window's thermal performance further.
More separation between inside and out.
COR 80 combines its 80 mm frame depth with a 45 mm polyamide thermal break and additional insulation within the frame and sash.
Higher performance does not require more visual clutter.
COR 80 Hidden Sash is compatible with the ARCH Invisible Handle, allowing the operating hardware to remain discreet within the sash.
Designed around demanding window specifications.
COR 80 combines its thermal performance with substantial sash dimensions and glazing capacity, making it suitable for projects where window size and energy performance both matter.
Maximum stated standard sash dimensions.
Maximum stated dimensions when using the heavy-duty side-hung hinge configuration.
Final limits depend on the selected window typology, glazing and hardware.
Where stronger window performance is part of the brief.
COR 80 makes most sense when the project needs the clean appearance of contemporary aluminium windows but places greater emphasis on insulation, glazing and overall energy performance.
Particularly relevant where window U-values form an important part of the overall energy strategy.
The deeper frame and greater glazing capacity suit projects with more demanding envelope requirements.
Heavy-duty hinge configurations allow particularly tall side-hung sash proportions where appropriate.
Hidden-sash and discreet hardware options help the higher-performing window remain visually restrained.