Testing & Certification

NCR Acoustical Testing

Metal Linear Ceilings – Closed Joint Systems

NRC

SAA

Backer

6” V-Groove Plank

0.15

0.12

-

6” V-Groove Plank with Insulation 

0.10

0.11

Fiberglass 1” thickness @ 3 lbs/ft3

6” Perforated Plank with 1” Insulation

0.70

0.70

Fiberglass 1” thickness @ 3lbs/ft3

6” Perforated Plank with 2” Insulation

0.95

0.96

Fiberglass 2” thickness @ 3lbs/ft3

6” Perforated Plank with Soundtex® 

0.75

0.75

Soundtex Scrim

2-1/2” Perforated Planks with Insulation

0.70

0.72

Fiberglass 1” thickness @ 3lbs/ft3

2-1/2” Perforated Planks 

0.03

0.05

-

Metal Linear Ceilings – Open Joint Systems

NRC

SAA

Backer

6” LINK & LOCK BAFFLES

0.10

0.12

-

6” LINK & LOCK BAFFLES @ 6” O.C. with Insulation 

0.80

0.81

Fiberglass 1” thickness @ 3 lbs/ft3

4” DAUNTLESS BAFFLES @ 6” O.C. with Insulation

0.75

0.75

Fiberglass 1” thickness @ 3lbs/ft3

6” DAUNTLESS BAFFLES @ 6” O.C. with Insulation 

0.79

0.80

Fiberglass 1” thickness @ 3lbs/ft3

6” DAUNTLESS BAFFLES @ 6” O.C. 

0.05

0.05

-

6” DAUNTLESS BAFFLES @ 6” O.C. with Insulation (above rails)

0.65

0.65

Fiberglass 1” thickness @ 3lbs/ft3

The test reported in this document conformed explicitly with ASTM C423-17 “Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method.”

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