Folding doors are ideal for locations where there is a need for large openable areas: opened door leaves are fixed on the side(s) of the product. This way opening is completely clear.
The product is based on same profile system as Viking inward opening wooden window (therefore it does not have conventional threshold). In addition to traditional sideways slide opening it tilts at the top for ventilation. ROTO hinges system enables to manufacture up to 130 kg openable sash. Profiles and technical properties are similar to tild-and-turn windows.
Folding door is available both as wooden and aluminium clad door. Traditionaldouble glazing (Ug = 1,1 W/m2K) or energy efficient triple glazing (Ug = 0,6 W/m2K) can be used.
Finishing according RAL, NCS (paint) or Vikings (lacquer) tone catalog by customer's choice preference.
See more different opening schemes (click on the picture below for closer look):
Note: U-value (0.60 – 1.2) indicates thermal transmittance of window. Smaller value equals better thermal insulation.
|Sound Insulation||Rw = 33 dB (-2;-5) - 3-glazing, standard glasses|
|Frame Depth||78 mm + guide rails (97 mm with alucladding); 88 mm + guide rails|
|Material of Sash and Frame||Glue-lam pine; quality class A1-A3|
|Glazing||40 mm 3-glazing or 50 mm 3-glazing with 2 LowE glasses, argon filled (available also with 26 mm 2-glazing)|
|Hardware||Roto bifold hardware|
|Aluminium Cladding||Optional external alucladding; NB! 88 mm system timber only!|
|Thermal transmittance||Uw = 0,90....1.2 W/m²K (depends on glazing and profile system)|
|Color of sash gaskets||White, grey, beige, brown|
Single sash: W 490 - 940 mm x H 1620 - 2420 mm
Frame: max width 4700 mm x max height 2500 mm