The main function of ECHAME’s metal tray lining is to guarantee controlled acoustics for your metal ceilings.
The nature of the lining material influences the absorption performance of your ceiling (Alpha w coefficient), as well as its ability to insulate two adjoining rooms in the case of a heavy tray.
Ferry nu
NU
Alpha w = NC
Black non-woven
INT
Alpha w = 0,7
Sonebel 164 black 30 mm glass wool
SONE
Alpha w = 0.9
Black surfaced rock wool 30 mm
LR30
Alpha w = 1
30 mm PU-film-bagged rock wool
LR30 PU
Alpha w = 0.95
30 mm black mineral wool + Plasterboard
LR30 BA13
Alpha w = 0,8
Alpha w average absorption coefficients laboratory-tested in accordance with NF EN 16487 and NF EN ISO 354, supplemented by NF EN ISO 11654 for the expression of the αw value.
Our panels offer excellent absorption performance to guarantee optimum acoustic comfort at all times.
Typical test for a perforated tray (with perforation rate greater than or equal to 11% and lining)
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | αw | |
Coef α p | 0.45 | 0.75 | 0.70 | 0.70 | 0.75 | 0.90 | 0,7 (LH) |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | αw | |
Coef α p | 0.45 | 0.80 | 0.80 | 0.90 | 0.95 | 1.10 | 0,90 |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | αw | |
Coef α p | 0.60 | 1.05 | 0.90 | 1.00 | 1.00 | 0.95 | 1.00 |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | αw | |
Coef α p | 0.45 | 0.95 | 1.05 | 1.00 | 0.95 | 0.75 | 0,95 |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | αw | |
Coef α p | 0.30 | 0.50 | 0.90 | 1.10 | 1.05 | 1.10 | 0,8 (H) |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | Dn,f,w | |
Dn,f | 25.5 | 36.1 | 46.0 | 57.8 | 65.4 | 61.5 | 46 |
Fréquence en Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 | Dn,f,w | |
Dn,f | 24.2 | 35.8 | 44.7 | 57.9 | 66.6 | 66.2 | 45 |
Bac | Acier | Acier | Acier | Acier | Acier | Acier |
Garnissage | Sans | Voile noir | Sonebel 164 | Laine de roche | Laine de roche | Laine de roche |
Classe de | A1 | A1 | A2-s1,d0 | A1 | A2-s1,d0 | A2-s1,d0 |
Bac | Acier | Acier | Acier | Acier | Acier | Acier |
Garnissage | Sans | Voile noir | Sonebel 164 SONE | Laine de roche 30 mm LR30 | Laine de roche | Laine de roche |
Classe de | A2-s1,d0 | A2-s1,d0 | A2-s1,d0 | A2-s1,d0 | A2-s1,d0 | A2-s1,d0 |
Système | EC2 SF | EC3 SF | EC30 SF |
Classe de réaction au feu | EC2 SF 300 mm : R 30 min | EC3 SF : R 30 min | EC30 SF : R 30 min |