Top-hung acoustic folding doors.
Suitable for the closure of internal or external openings where a reduction in noise transmission is required. They have been provided on many power stations worldwide, where they enhance the acoustic envelope of buildings such as turbine halls.
Steel acoustic folding door. The flat-faced robust construction renders it capable of withstanding severe wind conditions.
Features and benefits:
A range of RAL colours available.
Galvanised as standard. Polyester powder-coating to a range of standard RAL colours is available at extra cost.
Pr_30_59_34_14 Loose laid gas retardant damp proofing
L20/530 Sliding folding external doors
L20/535 Sliding folding shutter doors
Third party accreditation
University of Salford Acoustic Test Laboratory.
28 dB Rw acoustic rating.
Available up to 24 x 9 m.
Bunching to one side.
Available up to 12 x 9 m.
Top track: Galvanized steel rolled section, forming a box-type track on which pulleys run, mounted on the top of the door panels. A branch track is incorporated to allow the door to stack correctly; Bottom track: A galvanized steel bottom track is recessed into the floor and acts as a guide. Brass rollers connected to the bottom hinges run on a steel channel bottom track, which is set for alignment within a 200 x 75 mm chase before being grouted into position.
2 mm-thick, double-skin steel sheets, infilled with high-density rockwool. The door panels are 54 mm thick and are flush in appearance.
Finish and colour
Polyester powder-coated, RAL .
Wicket doors with cylinder lock
Sonafold Acoustic Folding Door