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The DK88 is our highest performing inward opening window range. Suitable for passive house, this versatile window range offers a number of opening options and can be specified where huge openings are required or when a window is situated adjacent to a door based on this frame profile. 

DK88 Window (triple glazed)

  • Thermal transmittence

    Uw = 0.74 W/m²K (1.23 x 1.48 m opening standard window)


    Sound insulation

    Rw = 34 dB (-2;-5) - with standard glasses

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