ALT BF73 Bifold Door System
ALT BF73 – the system of bi-folding doors is a modern, exclusive solution used in both residential and commercial markets: glazed openings for terrace exit, conservatories, effective application in show rooms, conference halls, hotels etc.
ALT BF73 allows to organize not only functional glazing of the large translucent openings, but also provides an attractive exterior and serviceability.
The functionality of the system makes it possible to realize the internal or external opening, to shift up to seven sashes in one direction. In the folded position, the sashes don’t occupy much space and release a wide opening, allowing to unify several rooms or a room with a street.
Acoustic performance36 dB
Thermal insulationranging from 1.4 ~1.7 W/ (m2K)
Air permeabilityClass 4
Water permeability600 Pa
Maximum length6500 mm
16800 mm using inline connectors
Maximum number of panels to one sideseven
Meeting stile120 mm
Maximum panel height 3000 mm
Maximum panel width 1200 mm
Maximum panel weight 120 kg
Maximum glass thickness 44 mm
Mounting frame depth 73 mm
Mounting sash depth 73 mm