Concept System 24 „Steel Look” aluminium window and door

CS 24-SL is a thermally insulated three-chamber system that is designed to merge both strength and aesthetics, yet keeping production simple. The slim silhouette and glazing beads gives the window a steel impression while keeping the aluminium performance. This system is perfect for fitting on new buildings or even replacing old steel-framed windows, yet keeping the same texture.

All side or top hung outward opening windows can be manufactured with hinges or friction stays.

Double colour is also available for this system.

This system will identically match the CS 24-SL door system. It also offers burglar resistance class 2, insuring that your building remains secure.

Technical Data

Minimum visible width

✓ Outward opening windows:  Frame-19mm   Vent-31mm

✓ T-profile: 13.9mm

Overall system depth

✓ Frame-85mm     Vent-85mm

Rebate height

✓ 14mm✓

Glass thickness

✓ 21mm but can go up to 30mm

Glazing method

✓ Dry glazing with EPDM or neutral silicones

Thermal insulation

✓ Omega-shaped fibreglass reinforced polyamide strips
✓ (Polyamide strip length Frame-22m Vent-22mm)

Testing results

✓ Thermal Insulation (EN 10077-2): U-f value between 3.3 and 4.4 (W/m²K)

✓ Value depends on the frame/vent combination

✓ Burglar resistance (NEN 5096, ENV 1627-ENV 1630): WK 2