Accordion Doors

Masterformat Section 08 35 13 & 10 22 23

 Product Information

 Technical Information

 Finishes


Model Selection

Hufcor accordion doors are available in several models. The models vary by the amount of acoustical separation provided. Non-acoustical accordion doors are a good choice where sound control is not an issue. For example: to enclose a storage area or close off a hallway.

All Hufcor accordion door consists of a steel pantograph, a lead and trail post, steel ball bearing carriers with nylon tires, and two covers. Steel laminated in the cover, and sweepstrips (soft multi-ply vinyl strips) are added to the acoustical models 3100, 3500, 3900, 4100 and 4500. In addition, the lead post has magnetic seals to help keep the door sealed tightly against the Magnaseal® jamb. The higher the acoustical rating, the heavier the steel used.

Accordion

Tip:

Although doors may be ordered up to 40'0" in length, we recommend they be ordered in narrower widths and be connected on site. Large doors plus their crating weigh hundreds of pounds. Smaller doors make the logistics of shipping, getting your doors to the appropriate location in the building, and installing much easier and less costly.

Sizes

Individual door sizes range from 3'0" [914mm] to 40'0" [12.19m] in width and to 17'0" [5.18m] in height. Counter height doors are available for small openings and for longer openings, multiple doors may be connected with optional posts.

Acoustical Ratings

An acoustical rating is achieved as a result of sound tests conducted in an accredited acoustical laboratory according to test standard ASTM E90. Refer to our Freedom from Distraction brochure for more information on sound ratings and test procedures.

Use the following chart as a reference for what the various STC .levels mean in terms of privacy (STC refers to Sound Transmission Class). Note this is a rough guide.

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Acoustical Ratings

An acoustical rating is achieved as a result of sound tests conducted in an accredited acoustical laboratory according to test standard ASTM E90. Refer to our Freedom from Distraction brochure for more information on sound ratings and test procedures.

Use the following chart as a reference for what the various STC .levels mean in terms of privacy (STC refers to Sound Transmission Class). Note this is a rough guide.

STC
Privacy Afforded
25
Normal speech easily understood
30
Normal speech audible, but unintelligible
35
Loud speech understood
40
Loud speech audible, but unintelligible
45
Loud speech barely audible
Accordion Model Selector
Model
STC
Lbs./Sq.Ft.[Kg/Sq.M]
Stack Dim/Lin.Ft. [Kg/Sq.M]
1500
15(est.)
1.3 [6.3]
1.4"/ft. + 2" [117 + 51]
2000
20(est.)
1.3 [6.3]
1.4"/ft. + 2" [117 + 51]
3100
31
2.7 [13.2]
1.9"/ft. + 3" [158 + 76]
3500
35
3.0 [14.6]
1.9"/ft. + 3" [158 + 76]
3900
39
3.7 [18.1]
1.9"/ft. + 3" [158 + 76]
4100
41
4.3 [21]
1.9"/ft. + 3" [158 + 76]
4500
45
5.1 [24.9]
1.9"/ft. + 3" [158 + 76]

If you need sound separation, Series 3100, 3500, or 3900 is a good choice. Your Hufcor Distributor will be happy to help you select the best rating for your needs.

Tip:

The higher the acoustical rating, the more expensive the price of the door. Make certain that the room in which your acoustically rated folding door is being installed has a sound rating similar to the accordion door or the door will not provide the sound control you were expecting.

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Accordion Door Resources


Owners Manual - Manual

Owners Manual - Electric




Product Brief




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