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Acoustical Performance Data

All sound testing of USG acoustical ceilings is conducted at the USG Corporate Innovation Center Acoustical Test Facility, which is accredited under the National Voluntary Laboratory Accreditation Program (NVLAP Lab Code: 200132-0).

Testing of acoustical materials is conducted under the UL Client Data Test Program. All acoustical data are representative of each product family listed.

Sound Absorption

All sound absorption tests are conducted according to ASTM C423. The ceiling panels are tested in the E400 mounting, per ASTM E795.

The absorption coefficients and published NRC ratings for our "flagship" products are shown below for your reference to compare performance at specific frequency ranges and to assist with calculations and acoustical modeling programs.

Complete reports of test results are available at the bottom of the page.

Acoustical Panel Product Name Item Number NRC Test # Min NRC Frequency (Hz)
125 250 500 1000 2000 4000
Absorption Coefficients (α)
USG Aspen™ Acoustical Panels 650 140814 0.55 0.54 0.40 0.56 0.81 0.68 0.59
USG Astro® Acoustical Panels 8223 150830 0.55 0.30 0.31 0.51 0.66 0.66 0.65
USG Clean Room® Acoustical Panels 56060 141125 0.55 0.47 0.36 0.58 0.91 0.76 0.59
USG Eclipse™ Acoustical Panels 76775 150301 0.70 0.25 0.36 0.59 0.88 0.89 0.84
USG "F" Fissured™ Acoustical Panels 132 140639 0.70 0.42 0.29 0.58 1.05 0.97 0.98
USG Fissured™ Acoustical Panels 506 150123 0.55 0.45 0.30 0.41 0.72 0.73 0.60
USG Frost™ Acoustical Panels 414 141049 0.70 0.39 0.30 0.70 0.90 0.82 0.73
USG Glacier™ Acoustical Panels 707 150612 0.65 0.58 0.28 0.55 1.02 1.04 1.07
USG Halcyon™ Acoustical Panels 98225 150836 0.95 0.74 0.93 0.80 1.05 1.09 1.18
USG Mars™ Acoustical Panels 86785 140819 0.70 0.56 0.40 0.61 0.92 0.97 0.99
USG Mars™ High-CAC (60/40) Acoustical Panels 86986 141002 0.60 0.24 0.31 0.60 0.85 0.92 0.99
USG Mars™ High-NRC (85/35) Acoustical Panels 88136 150709 0.85 0.26 0.42 0.78 1.04 1.09 1.06
USG Mars™ High-NRC (90/30) Acoustical Panels 88139 150405 0.90 0.56 0.68 0.82 1.04 1.06 1.08
USG Millennia® Acoustical Panels 76705 150118 0.70 0.47 0.39 0.61 0.84 0.89 0.88
USG Olympia™ Micro™ Acoustical Panels 4221 150349 0.50 0.43 0.39 0.61 0.72 0.56 0.40
USG Orion™ 85 Acoustical Panels 62164 150523 0.85 0.85 0.79 0.72 0.93 1.01 1.10
USG Pebbled™ Acoustical Panels 4805 101030 0.55 0.38 0.33 0.48 0.72 0.60 0.46
USG Radar™ Acoustical Panels 2220 150115 0.55 0.44 0.21 0.48 0.83 0.80 0.74
USG Radar™ High-CAC Acoustical Panels 22523 140803 0.70 0.39 0.29 0.70 0.91 0.83 0.71
USG Radar™ High-NRC Acoustical Panels 22350 140514 0.70 0.31 0.37 0.63 0.94 0.88 0.80
USG Rockface® Acoustical Panels 55483 140806 0.55 0.37 0.26 0.53 0.85 0.58 0.39
USG Sandrift™Acoustical Panels 808 140641 0.70 0.46 0.31 0.64 0.95 0.94 0.92
USG Sheetrock® Brand Lay-in Acoustical Panels 3260 n/a --            
USG Touchstone™ Acoustical Panels 5896 140809 0.55 0.41 0.26 0.54 0.88 0.62 0.43

Sound Attenuation

All sound attenuation tests for acoustical ceiling panels are conducted according to ASTM E1414 using type CE mounting (continuous at partitions, Exposed suspension system) and classified for CAC per ASTM E413.

The transmission loss data and published CAC ratings for our "flagship" products are shown below for your reference to compare performance at specific frequency ranges and to assist with calculations and acoustical modeling programs.

Complete reports of test results are available at the bottom of the page.

Acoustical Panel Product Name Item Number CAC Test # Min CAC Frequency (Hz)
125 250 500 1000 2000 4000
Normalized Ceiling Attenuation, Dn,c (dB)
USG Aspen™ Acoustical Panels 650 140818 36 24 27 30 39 47 49
USG Astro® Acoustical Panels 8223 150903 37 23 29 30 38 43 51
USG Clean Room® Acoustical Panels 56060 141124 39 26 29 33 41 55 49
USG Eclipse™ Acoustical Panels 76775 150305 37 23 28 33 38 49 55
USG "F" Fissured™ Acoustical Panels 132 140644 38 23 29 34 41 46 55
USG Fissured™ Acoustical Panels 506 150205 35 23 26 29 36 46 47
USG Frost™ Acoustical Panels 414 141109 39 25 28 35 40 45 50
USG Glacier™ Acoustical Panels 707 150555 38 22 29 33 40 45 53
USG Halcyon™ Acoustical Panels 98225 150905 22 15 16 20 19 25 30
USG Mars™ Acoustical Panels 86785 140911 39 24 29 34 41 47 54
USG Mars™ High-CAC (60/40) Acoustical Panels 86986 141004 41 26 31 37 42 48 59
USG Mars™ High-NRC (85/35) Acoustical Panels 88136 150711 39 23 28 35 40 48 59
USG Mars™ High-NRC (90/30) Acoustical Panels 88139 150408 32 23 24 28 31 42 57
USG Millennia® Acoustical Panels 76705 150203 36 24 28 31 37 46 54
USG Olympia™ Micro™ Acoustical Panels 4221 150413 35 21 25 30 37 42 43
USG Orion™ 85 Acoustical Panels 62164 150551 24 21 20 21 21 27 36
USG Pebbled™ Acoustical Panels 4805 101036 35 23 27 31 37 38 41
USG Radar™ Acoustical Panels 2220 150201 36 24 28 30 38 47 52
USG Radar™ High-CAC Acoustical Panels 22523 140829 42 26 31 38 46 52 57
USG Radar™ High-NRC Acoustical Panels 22350 140607 40 30 32 35 42 56 58
USG Rockface® Acoustical Panels 55483 140828 39 26 29 34 42 49 51
USG Sandrift™Acoustical Panels 808 140648 39 24 30 35 41 44 52
USG Sheetrock® Brand Lay-in Acoustical Panels 3260 131012 37 25 31 34 39 40 35
USG Touchstone™ Acoustical Panels 5896 140824 41 25 30 35 44 49 51