Barrisol Acoustic - a40

A40 Miniperf^®

Thanks to Miniperf®, resonances are immediately absorbed, thus the parts with high ceilings enjoy particularly pleasant acoustics.


Perforation	Features
	Holes : 30 000/m² Hole diameter : ≈ 0,5 mm Perforation rate : ≈ 5 % Thickness : ≈ 0,30 mm Reference : A40 + ref. colour

A40 Miniperf® without insulation :

Plafond A40 Miniperf®

A40 Miniperf® with insulation :

Plafond A40 Miniperf®avec isolant

Taux d'absorption acoustique

Sound absorption ratings	Without insulation	With insulation
Sound absorption average according to ASTM C423 - 01	SAA = 0.35	SAA = 0.83
Noise reduction coefficient according to ASTM C423 -01	NRC = 0.30	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	B