Unique slide and fold dual hollow aluminium system. The doors which sit in a rebated frame have an external curved shape with internal beading. Bottom wheels and top glider are safely concealed within a dedicated floating mullion with the door leafs being joined by a butt type knuckle hinge. Suitable for domestic and light / medium / heavy duty commercial applications. Also more commonly known as Sliding folding doors or concertina doors.
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Bi-Folding Doors

• This series of folding doors is mostly used in hotels and restaurants, stores and in private houses, in order to open a complete wall to create a larger space in the summer
• Extruded out of aluminium-alloy AlMgSi 0,5 F22 according to DIN 1725
• Built-in depth: outer frame 78 mm, sash 70 mm
• Sealings: with extruded EPDM rubbers and PP-brushes
• Glazing: from 4 to 37 mm
• Available in Smart Solutions - Visofold