The look of fine metal joinery, in thermally broken aluminium. A classic version and a modern version.
ALU-STEEL answers a recurrent demand in refurbishment and in industrial-style architecture: the slim, cool line of metal joinery, without the thermal drawbacks of steel. The profile is thermally broken aluminium, but the design follows the proportions of classic metal joinery.
The system has two frame versions — classic, 100 mm, and modern, 75 mm — on the same 83 mm sash. It is also one of the few systems in the range with SKG certification.
The two versions share the same data sheet and the same performance; they differ in the frame sightline, 100 mm on the classic version and 75 mm on the modern one.
Characteristics
Thermal transmittance
Uw ≥ 0.83 W/m²K
Glazing
maximum 54 mm / minimum 20 mm
Sound insulation
maximum Rw = 45 dB
Frame sightline
modern version 75 mm / classic version 100 mm
Sash sightline
83 mm
Profile thickness
window 1.5 mm / door 1.5 mm
Polyamide bar
32–39 mm
Maximum dimensions / leaf
W 1,500 mm × H 2,600 mm
Maximum weight / leaf
160 kg
Extrusion alloy
6063 T-5
Classes achieved in testing
Air permeability (UNE-EN 12207)
Class 4
Watertightness (UNE-EN 12208)
Class E1200
Wind resistance (UNE-EN 12210)
Class C5
Reference test specimen
1.23 × 1.48 m / 2 leaves
Testing verified by
ALUMINIOS CORTIZO S.A.U.
Opening configurations
Inward: side-hung, tilt and turn, and bottom-hung.
Outward: side-hung.
Certification
SKG certification
Finishes
Two-tone possible
Powder coating (RAL, mottled and textured), to Qualicoat >60 microns
Wood-effect coating, to the Qualideco standard
Anodising, to Ewwa Euras / standard class 15, optionally classes 20 and 25
The thermal transmittance values published by CORTIZO are minimum values for the system, conditional on the typology, on the dimensions of the joinery and on the glazing unit. The actual value of an assembly is established by calculation, on the configuration actually ordered.
From system to finished joinery
What we do with this system
Choosing the configuration
The system offers a range; the project asks for a value. We settle the version, the glazing unit and the typology from the actual requirements of the building, not from the maximum on the data sheet.
Calculation on the actual assembly
The transmittance of a window depends on the frame-to-glass ratio. We calculate it on the actual dimensions of the openings, not on the laboratory specimen.
Our own production
Cutting, machining, assembly and glazing in our own workshop in Baia Mare, on original CORTIZO profile and with hardware approved for the system.
Installation and handover
We install with our own teams, including abroad, and hand the job over with its documents. The warranty is the one published on our warranties page.
Next step
Do you want ALU-STEEL on your project?
Send us the window schedule or the drawings. We will come back with the right version from the family, with the thermal calculation on the actual openings, and with the price.
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