Technical properties of folding door:

Thermal transmittance
- With double glazing: Uw = 1,29 W/m²K;
- With triple glazing: Uw = 0,97 W/m²K;
- Thermal window: Uw = 0,87 W/m²K;
Sound insulation:
- With double glazing: Rw (C; Ctr) = 33db (-1; -4);
- With triple glazing: Rw (C; Ctr) = 35db (-1; -5);
Cross sections: frame 78 x 78 mm; sash 78 x 78 mm; transom/mullion 105 x 78 mm; glazing bar 63 x 78 mm or 85 x 78 mm;
Pine wood with quality class A1–A3;
Wooden profiles treated with water based preservative;
Glazing unit: double glazing 26 mm (Ug = 1,1 W/m²K) or triple glazing 40 mm (Ug = 0,6 W/m²K);
Hardware: ROTO;
Frame dimensions: WxH max. 4,3 x 2,5 m;
Multilight windows with transoms and mullions;
Weight of the opening sash up to 130 kg.
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Contact

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Folding Patio Doors

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 Viking DK10 windows.

Folding door is available both as wooden and aluminium clad door. Traditional double 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.

Views of folding door:


Inside view	Outside view

Download product descriptions (PDF)

Drawings (PDF) Drawings (DWG)

Examples of different opening possibilities of folding doors:

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