SlimLine 38

SlimLine 38

SlimLine 38 window

Light, Elegance and Comfort

SlimLine 38 is a highly insulated system for inward and outward opening windows and doors, which combines elegance and comfort, with a unique design. This special slender steel look is the perfect solution for modern architecture and renovation of steel-framed windows, respecting the original design but offering a thermally improved solution.

The SL 38 system is available in 3 different minimalistic design variants, Classic, Ferro and Cubic, to perfectly match the architectural aspect of the building. The windows and doors can be provided with double and triple glazing without losing the ultra-slim look.

In combination with its superior insulation capabilities, the system provides the perfect harmony between durable material, clean design and demanding architectural challenges.

Technical information


Min. Visible width frame: inward opening1 5/16 inch 
Min. Visible width vent: inward opening7/8 inch 
Min. Visible width frame-vent: inward opening2 5/8 inch 
Min. Visible width frame: outward opening1 1/8 inch 
Min. Visible width frame-vent: outward opening3 1/8 inch 
Min. Visible width T-profile1 7/8 inch 
Max. height vent110 1/4 inch 
Max. width vent47 1/4 inch 
Max. weight element170 kg 
Overall system depth frame3 7/8 inch 
Overall system depth vent3 3/8 inch 
Rebate height9/16 inch 
Min. Glass thickness5/8 inch 
Max. Glass thickness2 3/16 inch 
Min. Glass thickness vent5/8 inch 
Max. Glass thickness vent2 3/16 inch 
Glazing methodDry glazing with EPDM or neutral silicones  
Thermal breakFibreglass Reinforced Polyamide Strips  


Air tightness max. test pressure4 (600 Pa)
Water tightness9A (600 Pa)
Wind load resistanceC3 (1200 Pa)
Acoustic performance45 dB
Burglar resistance (EN)RC2/WK2
Thermal insulation (Uf)1,9 W/m²K

Opening elements

  • Fixed windowFixed window
  • Inward opening combined elementsInward opening combined elements
  • Inward opening double casementInward opening double casement
  • Inward opening tilt turnInward opening tilt turn
  • Inward opening turnInward opening turn
  • Inward opening turn tiltInward opening turn tilt
  • Outward opening Top hungOutward opening Top hung
  • Outward opening TurnOutward opening Turn
  • Round window fixedRound window fixed