Reynaers SlimLine 38 Classic
Aluminium · Steel-inspired design
Thermally broken aluminium windows with slender, steel-inspired lines for contemporary buildings and character renovations.
This system is part of the solutions used by BO Fenster. The final choice always depends on measurements, the building, performance goals and installation type.
0,99 W/m²K
Reference Uw
67 mm
Minimum combined sightline
45 dB
Sound insulation

System images
Why we use this system
- Minimum combined frame-and-sash sightline 67 mm
- Published sound insulation 45 (-1; -5) dB
- RC2 configurations
- Air class 4, water class 9A and wind class C4
- Choice of glazing methods and hinge options
Colors and finishes
Colours and finishes
- RAL finishes according to the selected collection
- Single colour or different interior and exterior finishes
- Confirm finish and availability using samples
Detailed technical parameters
- Frame insulation
- Uf 1,9 W/m²K (best value)
- Window insulation
- Uw 0,99 W/m²K
- Air permeability
- Class 4 (600 Pa)
- Water tightness
- Class 9A (600 Pa)
- Wind resistance
- Class C4 (1600 Pa)
- Sound insulation
- Rw(C; Ctr) 45 (-1; -5) dB
- Durability
- Class 3 (20 000 cycles)
- Burglar resistance
- RC2
- Minimum frame sightline
- 33,5 mm (inward opening)
- Minimum sash sightline
- 23 mm (inward opening)
- Minimum frame-and-sash sightline
- 67 mm
- Frame / sash depth
- 99 / 76 mm
- Frame-and-sash depth
- 109 mm
- Sash glazing thickness
- 16–55 mm
- Glazing rebate height
- 13,5 mm
Uw 0.99 W/m²K: 1.23 × 1.48 m frame-and-sash element, 73 mm sightline, 36 mm glazing, Ug 0.6 W/m²K and warm-edge spacer. Final performance, security classes, dimensions and options depend on the selected configuration, glazing and hardware. Uw refers to the complete window, Ud to the complete door, Uf to the frame and Ug to the glazing. Confirm the specified assembly in your quotation.
Technical drawings
Handles
Spacers
Could this system fit your project?
Request a free, no-obligation quote. BO Fenster checks the technical requirements and recommends the right solution.
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