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Acoustic Curtains - BA
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IES 2000’s “BA” composite features a reinforced loaded vinyl noise barrier with a quilted fiberglass sound absorber on one side. The rugged durable exterior barrier is commonly used as a wrap or acoustical jacket due to its ability to conform to any shape. The quilted fiberglass layer decouples the noise barrier to enhance its acoustical performance.
BA Noise Barrier/Sound Absorber Composite IES 2000 BA’s offers the benefits of a noise barrier and a sound absorber composite. BA’s offers the benefits of a noise barrier and a sound absorber composite. The BA consists of a vinyl-coated-fiberglass-cloth facing on 2” quilted fiberglass that is bonded to a reinforced 1-lb psf. loaded vinyl barrier.
Curtain panels are constructed with grommets across the top and Velcro along the vertical edges. Rolls are available 54” wide x 25’ long and can be supplied with edges bound or unbound (note: barrier is 54” wide, quilt is held 3” in from each vertical edge, and measures 48”).
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Applications:
Typically used as curtain panels in acoustical curtain enclosures where abuse resistance or excellent durability as well as maximum noise reduction is required. Frequently used as sliding doors on acoustical curtain enclosures, or as a temporary noise barrier on outdoor construction projects.
Specialty composites can incorporate rigid fiberglass board, various facing and different weighs of barrier. Applications include plenum barriers, engine compartment liners, acoustical jackets, pipe lagging, and any area where both sound absorption and noise barriers are required.
Product Data:
Vinyl coated fiberglass cloth facing on 2” quilted fiberglass/ 1lb-psf reinforced loaded vinyl barrier
| Flammability
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Flame Spread: 23.0
Smoke density: 30.0
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| Nominal thickness
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2.0 inches
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| Temperature range
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-20° to +180° F
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| Standard width
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54” wide
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| Roll length
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25’ long
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| Weight
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1.5 lb psf
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The most effective noise reduction products combine both sound absorption and noise barrier properties. Tested under strict compliance to appropriate ASTM standards, we offer the following results.
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Acoustical Data:
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| Sound Transmission Loss (dB) Octave and Center Frequencies (Hz) |
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Product
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Thickness (In./Nom.) |
Wt. Lb./S.F. |
125 |
250 |
500 |
1K |
2K |
4K |
STC |
BA-21 |
2 |
1.5 |
13 |
20 |
29 |
40 |
50 |
55 |
32 |
BA-11 |
1 |
1.3 |
11 |
16 |
24 |
30 |
35 |
35 |
27 |
BA-21-S |
2 |
1.5 |
13 |
20 |
29 |
40 |
50 |
55 |
32 |
BA-11-S |
1 |
1.3 |
11 |
16 |
24 |
30 |
35 |
35 |
27 |
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Sound Absorption Data-Absorber Component Random Incident Sound Absorption |
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Product
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Octave Band Center Frequencies (Hz) |
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125 |
250 |
500 |
1K |
2K |
4K |
NRC |
BA 1" thick |
0.12 |
0.47 |
0.85 |
0.84 |
0.64 |
0.62 |
0.7 |
BA 2" thick |
0.07 |
0.27 |
0.96 |
1.13 |
1.08 |
0.99 |
0.85 |
BA 4" thick |
0.21 |
0.89 |
1.09 |
1.17 |
1.13 |
1.07 |
1.05 |
| per ASTM: C423-81 and C423-90A |
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| * The tables on this page refer to some of the more common BA composites. There are many others which combine the wide variety of barriers and quilted fiberglass absorbers available to address any industrial application. |
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