FINANCIAL INSTITUTION CAFETERIA, New York, NY

NRC – Noise Reduction Coefficient

NRC – Noise Reduction Coefficient – Reference

All NEWMAT membranes can be treated acoustically (microperforation) @ 250 000 micro perforations / sqm (10.764 sf)

Acoustical Performance

Acoustic membrane only with a 100mm high plenum, AlphaW = 0.45 & NRC 0.45
NEW/ACOUSTIC Single Micro Perforated Ceiling Membranes

 

Double NEW/ACOUSTIC membrane, AlphaW = 0.65 & NRC = 0.55

NEW/ACOUSTIC Double Micro Perforated Ceiling Membranes

 

Acoustic membrane + 20mm thick acoustic liner with a 100mm high plenum, AlphaW = 0.70 & NRC 0.70

NEW/ACOUSTIC Single Micro Perforated Ceiling Membranes and 20 mm Acoustic Liner

 

Acoustic membrane + 40mm thick acoustic liner with a 100mm high plenum, AlphaW = 0.75 & NRC 0.90

NEW/ACOUSTIC Single Micro Perforated Ceiling Membranes and 40 mm of Rock Wool

 

The absorption performance is really interesting as excellent results are achieved with low frequencies around 500 Hz. Installing a stretch ceiling is the perfect solution, since traditional acoustic absorbents (mineral wool) perform rather poorly at these frequencies.