In-out opening Aru SV-2.1

The Aru SV-2.1 is a double-frame wooden window with inward- and outward-opening functionality. The outer frame features 4 mm clear glass, while the inner frame contains a double-glazed unit.

This window type is widely used in renovation projects and in new buildings located in heritage or architecturally valuable areas, where maintaining the original architectural style is important. For holding the sash in an open position, a handle-operated friction brake can be selected. The window can be opened side-hung or bottom-hung.

Glazing configuration:
Outer frame: through glazing bars or surface-mounted wooden mouldings
Inner frame: surface-mounted wooden mouldings only

In-out opening Aru SV-2.1

Technical information

Download the product sheet here

  • Opening direction: outer sash outward, inner sash inward

  • Frame depth: min. 150 mm

  • Profile: Modern

  • Thermal transmittance (Uw): 1.04 W/m²K

  • Outer frame: 4 mm clear glass
    Inner frame: double-glazed unit with one low-emissivity glass

  • Glazing unit thickness: 24 mm

  • Air permeability: Class 4

  • Resistance to wind load: C5

  • Water tightness: E1050

  • Sound insulation: Rw (C; Ctr) = 39 (0; −2) dB

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