20 oz. CRESCENT A mediumweight, sound absorbent durable IFR velour with a short dense nap and a matte nish. Drapes and lights beautifully. Ideal for stage drapery or anywhere a classic look is desired. See page 85 for colors. Full bolts only.
Inherently Flame Retardant Width: 54 Bolt Length: 85-95 yds 100% Polyester
Price Per Yard: $17.95 Noise Reduction Coef cient NRC: 0.95 Sound Absorption Average SAA: 0.96
Noise Reduction Coef cient NRC: 0.85 Sound Absorption Average SAA: 0.83
Noise Reduction Coef cient NRC: 0.90 Sound Absorption Average SAA: 0.92
25 oz. CHARISMA Heavyweight and durable, with a matte nish and a thick dense pile, CHARISMA is an elegant, high-quality synthetic IFR velour that has the rich look and deep color of cotton velour as well as its capacity for light- and sound-absorbency. Excellent for theatrical venues, rehearsal spaces, recording studios. See page 85 for colors. Full bolts only.
Inherently Flame Retardant Width: 54 Bolt Length: 85-95 yds 100% Polyester
Price Per Yard: $22.85
25 oz. PRESTIGE PRESTIGE is a heavyweight, durable IFR velour that has a slight sheen and a long dense pile, giving it a luxurious satiny look along with exceptional opacity and sound absorption. Hangs and lights beautifully. A very good across-the-board per- former for many applications. See page 85 for colors. Full bolts only.
Inherently Flame Retardant Width: 54 Bolt Length: 60-80 yds 100% Polyester
Price Per Yard: $22.00
In a large variety of multi-purpose venues that require variable acoustic control, most solutions are accomplished with
exible absorption methods. Sound waves can be effectively absorbed by almost any open cell structure such as fabrics,
foams, or carpet; whereas fabrics being the most versatile form of exible absorption. Factors that contribute to good
sound absorption in fabrics are ow resistance and weight of the material. The Noise Reduction Coef cient (NRC) gives a
general impression of the absorption properties of the material. For example, a NRC of 1 absorbs 100% of sound energy.
Other important factors that determine the NRC are percentage of fabric fullness and the distance away from the wall in
which the fabric has been tested.
ACOUSTIC FABRICS
0,00 125 250 500 1000 2000 4000
f/Hz
αs1,00
0,80
0,60
0,40
0,20
0,00 125 250 500 1000 2000 4000
f/Hz
αs1,00
0,80
0,60
0,40
0,20
0,00 125 250 500 1000 2000 4000
f/Hz
αs1,00
0,80
0,60
0,40
0,20
7012-22
7012-23
7012-24
128 gerriets.us | 800-369-3695 | info@gerriets.us
NRC & SAA data is measured with 100% fullness and hanging 4" off the wall. For additional reports and data, log onto gerriets.us.
[creative fabrics]
