The offer of DURWIN windows is addressed mainly to customers in the UK, Ireland and Scandinavian countries where outward opening windows dominate.
Wood-aluminum windows combine positive features of wood that is naturally beautiful and perfect construction material and aluminum resistant to external conditions.
Clever design and appropriate combination of these two different materials give excellent results.
DURWIN windows – nature inside and indestructible aluminum cladding outside.
Wood-aluminum windows virtually require no maintenance and are an investment for future generations.
They are perfect for buildings that are more exposed to weathering: mountain areas, coastal zones.


  • Construction
  • Single frame, frame dimension 56×92 mm, sash dimension
    56 x 61 mm. All technically possible shapes and dimensions.
  • Material
  • Engineered wood – selected or fingerjointed
    Pine, meranti or oak timber.
  • Sound insulation
  • Sound reduction for the standard unit Rw = 31 dB.
    Glazing unit with improved sound absorption (option) for Rw = 34-42 dB, depending on a selected glazing unit.
  • Heat permeability
  • The heat transfer coefficient for the window with the test dimensionis Uw -1.3 W / m2K
  • Glazing
  • Double-glazing, single-chamber (4-18Ar-4), 26 mm unit, the heat transfer coefficient Ug = 1.0 W / m2C (BS EN-674), inter-pane cavity filled with argon.
    Triple-glazing, twin-chamber (4-10Ar-4-10Ar-4), 32 mm unit, the heat transfer coefficient Ug = 0.8 W / m2K (EN-PN 674), inter-pane cavity filled with argon.
    Triple-glazing, twin-chamber (4-4-10Kr 10Kr-4), 32mm unit, the heat transfer coefficient Ug = 0.6 W / m2K (EN-PN 674), inter-pane cavity filled with krypton.
    Maximum glass thickness in frame 40 mm, in sash 44 mm.
    Ornamental glass, safe, with sun protection properties – option.
    Aluminum Spacer – standard.
  • Window muntins
  • Vienna (glued wooden + internal aluminum widths: 22, 32, 42mm), inter-pane, constructionwidths: 60mm or 80mm.
  • Fittings
  • Supplied by IPA Denmark.
  • How to open
  • Side hung, side swing, top hung, top swing.
  • Colour
  • Transparent paints according to Sigma Coatings colour chart.
    Opaque paints according to RAL and NCS colour charts.
    4 coating system, impregnation, primer, interlayer, topcoat.
  • Gaskets
  • Single gasket Q-LON 3053 supplied by Schlegel.
    Glass gaskets: both sides black 3 mm gasket supplied by Deventer.
  • Silicone
  • Silikon Wacker lub Perennator, colours: transparent, white, light brown, dark brown, black
  • Aluminium Cladding
  • Aluminum cladding cut 45° Mechanically gripped or welded.
    Colors according to RAL color cart. Cladding supplier Aluron.
  • Handles
  • Hoppe Secustic Atlanta handle in silver.
    Key-lockable handle in colors as above – option.
  • Warranty
  • Uni Windows Ltd. offers a 10-year warranty on labour and materials used.

Leave a Reply

Your email address will not be published. Required fields are marked *