Acoustical Information The purpose of any wall system is to absorb sound waves

Acoustical Information

The purpose of any wall system is to absorb sound waves thereby eliminating sound bounce which results in improved acoustics of a treated area.

The charts below illustrate how FABRI-TRAK® eliminates sound bounce in an office where three people are conversing and the room contains a machine such as a computer printer or a typewriter.

At the Orange County Convention center in Orlando, Fl. The use of horizontal panels with wood reveals carries from these entries throughout the Lecture Hall. Design by HHCP Architects Inc., and Baily Nichols Group.

A. Sheetrock Walls Covered With Wallpaper B. Sheetrock Walls Covered With FABRI-TRAK

The amount of sound waves absorbed by an acoustical wall system is measured in N.R.C. (Noise Reduction Coefficients). Since sound or noise is composed of many frequencies (cycles per second, measured in hertz (Hz) levels), and the human ear can not hear all sound frequencies, N.R.C. is always measured in conjunction with a particular Hz (frequency) level, or averaged over a range of Hz levels.

Here 13" wide "Puff" panels were used on the ceiling to absorb sound over the guests while the 1" thick panels on the walls help to keep the sound under control. Located in The Falls Country Club, Lake Worth, Fl. Design by H. Chambers Co.

The type of noise found in an average office environment is of high frequency (talking, walking, typing, telephones, computers), therefore FABRI-TRAK® is specifically designed to reduce noise at the 1000-4000 Hz (high frequency) level providing high N.R.C. and an excellent acoustical environment.

NOISE REDUCTION COEFFICIENTS

System	125Hz	250Hz	500Hz	1000Hz	2000Hz	4000Hz	125-4000	1000-4000
3/8" Fabri-Tra	.05	.17	.54	.42	.51	.77	.40	.60
1"	.29	.39	.77	1.10	.98	1.01	.80	1.03
2" Fabri-T	.22	.82	1.21	1.10	1.02	1.05	1.05	1.06