Thanks to Miniperf®, resonances are immediately absorbed, thus the parts with high ceilings enjoy particularly pleasant acoustics.
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| Perforation | Features | 
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			Holes : 30 000/m² Hole diameter : ≈ 0,5 mm Perforation rate : ≈ 5 % Thickness : ≈ 0,30 mm Reference : A40 + ref. colour  | 
		
 
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			 A40 Miniperf® without insulation : 
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			 A40 Miniperf® with insulation : 
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| Sound absorption ratings | Without insulation | With insulation | 
| Sound absorption average according to ASTM C423 - 01 | SAA = 0.34 | SAA = 0.83 | 
| Noise reduction coefficient according to ASTM C423 -01 | NRC = 0.35 | NRC = 0.85 | 
| Weighted sound absorption coefficient according to DIN EN 11654 | αw=0,35 | αw=0,65 (Lm) | 
| Sound absorber class according to DIN EN 11654 | D | C | 
To install your stretch ceiling : we help in the search for a stretch ceiling approved Barrisol installer nearest you. Barrisol approved installers have received specialized training at Barrisol, pledge of excellence and quality of work.
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  INDOOR AIR EMISSIONS : A+ CERTIFICATION
      Emissions in indoor air A+
All Barrisol® sheets are labeled A+ ( highest rating ) in accordance with the statutory provisions on the quality of indoor air.
  CERTIFICATION "FRENCH ORIGIN GUARENTEED"
  Barrisol® Normalu SAS, first ceiling manufacturer in the world to obtain the label "French Origin Guarenteed".
« French Origin Guarenteed » certifies that Barrisol ceilings are made in France.