Name: FURAL Metal Cassette Ceiling
Brand: Fural Systeme in Metall GmbH

Acoustic Index

FURAL Metal Cassette Ceiling – Fural Systeme in Metall GmbH | Acoustic Index

Sound absorption

ISO 354 – reverberation chamber· 160 variants

Perforation

Size

Surface

αw

1.00

Frequency values

αp per ISO 11654

125 Hz

0.45

250 Hz

0.85

500 Hz

0.95

1000 Hz

0.95

2000 Hz

1.00

4000 Hz

0.90

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Perforation	Size	Test setup	Surface	Value
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 46 kg/m³	with acoustic fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	50 mm mineral wool 45 kg/m³	with acoustic fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	30 mm polyester wool 48 kg/m³	with acoustic fleece	αw1.00
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	30 mm polyester wool 48 kg/m³	with acoustic fleece	αw1.00
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	without fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	40 mm polyester wool 20 kg/m³	without fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	40 mm polyester wool 20 kg/m³	with acoustic fleece	αw1.00
2,5 x 2,0 x 0,5 x 0,5	200 mm overall build-up	40 mm polyester wool 20 kg/m³	without fleece	αw1.00
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	40 mm polyester wool 20 kg/m³	without fleece	αw1.00
Rg 2,5-16%	200 mm overall build-up	20 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rg 2,5-16%	200 mm overall build-up	30 mm foam 9 kg/m³	with acoustic fleece	αw0.95
Rg 2,5-16%	100 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rg 2,5-16%	200 mm overall build-up	30 mm polyester wool 24 kg/m³	with acoustic fleece	αw0.95
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	without fleece	αw0.95
Rg 2,5-16%	50 mm overall build-up	50 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rd 1,8-21%	200 mm overall build-up	40 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rv 1,6-20%	200 mm overall build-up	40 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.95
Rd 1,8-21%	200 mm overall build-up	30 mm mineral wool 50 kg/m³ in PE film	without fleece	αw0.95
16,0 x 8,0 x1,5x1,0	400 mm overall build-up	40 mm polyester wool 20 kg/m³	without fleece	αw0.95
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film (Akustikfolie)	with acoustic fleece	αw0.90
Rd 1,5-22%	200 mm overall build-up	20 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.90
Rg 2,5-16%	400 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.90
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.90
Rd 2,5-8%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.90
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.90
Rd 1,5-22%	200 mm overall build-up	40 mm polyester wool 20 kg/m³	with acoustic fleece	αw0.90
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 50 kg/m³ in PE film	with acoustic fleece	αw0.90
Rg 2,5-16%	200 mm overall build-up	20 mm polyester wool 20 kg/m³	with acoustic fleece	αw0.90
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	50 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.85
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	without fleece	αw0.85
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.85
Rd 1,8-21%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.85
22,0 x 12,0 x 2,0 x 1,5	200 mm overall build-up	20 mm polyester wool 20 kg/m³	without fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	20 mm polyester wool 20 kg/m³	without fleece	αw0.85
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Rv 1,6-20%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Rg 2,5-16%	100 mm overall build-up	—	with acoustic fleece	αw0.80
Rg 2,5-16%	50 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.80
Rv 1,6-20%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.80
Rd 4,0-33%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Qg 4,0-33%	200 mm overall build-up	—	with acoustic fleece	αw0.80
3,0-11%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Rg 4,0-17%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.80
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	50 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.80
Rd 1,5-22%	200 mm overall build-up	20 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.80
Rv 1,6-20%	200 mm overall build-up	30 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.80
Rv 1,6-20%	200 mm overall build-up	30 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.80
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 30 kg/m³ in PE film	without fleece	αw0.80
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.80
Rg 1,5-11%	750 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.80
Rg 0,7-4%	200 mm overall build-up	40 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	40 mm polyester wool 20 kg/m³	with acoustic fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.80
Rd 1,8-21%	200 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	without fleece	αw0.80
Rg 2,5-16%	200 mm overall build-up	20 mm Melaminharzschaum, 9 kg/m³	without fleece	αw0.80
Rd 2,5-4%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.75
Rg 0,7-4%	200 mm overall build-up	20 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.75
Rg 2,5-16%	400 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 1,8-21%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 1,8-20%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 3,0-20%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rv 3,0-20%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 2,5-16%	30 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.75
Rd 2,8-20%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 2,5-8%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.75
Rv 2,5-23%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.75
Rg 14,0-23%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 1,5-11%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 1,5-11%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 1,8-10%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 1,8-10%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.75
Rv 1,6-20%	200 mm overall build-up	30 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.75
Rg 0,8-6%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rg 0,7-4%	200 mm overall build-up	—	with acoustic fleece	αw0.75
2,5 x 2,0 x 0,5 x 0,5	200 mm overall build-up	—	with acoustic fleece	αw0.75
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	15 mm polyester wool 20 kg/m³	without fleece	αw0.75
Qg 15-62%	200 mm overall build-up	—	with acoustic fleece	αw0.75
Rd 12-24%	200 mm overall build-up	—	with acoustic fleece	αw0.75
22,0 x 12,0 x 2,0 x 1,5	200 mm overall build-up	—	without fleece	αw0.75
Rg 2,5-16%	200 mm overall build-up	28 Stk. polyester wool - strips with 2400x25x50, 80 kg/m³; 7 strips/Kassette zwischen ALPs	with acoustic fleece	αw0.75
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.75
16,0 x 8,0 x1,5x1,0	100 mm overall build-up	—	with acoustic fleece	αw0.70
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 1,6-22%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rv 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rg 2,5-16%	200 mm overall build-up	40 mm mineral wool 30 kg/m³ in PE film	without fleece	αw0.70
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.70
16,0 x 8,0 x1,5x1,0	400 mm overall build-up	—	with acoustic fleece	αw0.70
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 1,5-22%	200 mm overall build-up	15 mm mineral-fibre panel 303 kg/m³	with acoustic fleece	αw0.70
Rd 0,8-11%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rg 0,9-7%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rg 1,5-11%	750 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.70
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rg 2,5-16%	200 mm overall build-up	50 mm mineral-wool strips 50 mm wide 57 kg/m³ in PE film	with acoustic fleece	αw0.70
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 1,5-6%	200 mm overall build-up	—	with acoustic fleece	αw0.70
Rd 0,9-14%	200 mm overall build-up	—	with acoustic fleece	αw0.70
22,0 x 12,0 x 2,0 x 1,5	400 mm overall build-up	20 mm Melaminharzschaum, 9 kg/m³	without fleece	αw0.70
22,0 x 12,0 x 2,0 x 1,5	400 mm overall build-up	—	without fleece	αw0.70
Rg 0,7-4%	200 mm overall build-up	20 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.65
Rd 1,5-22%	200 mm overall build-up	20 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.65
Rv 4,5-51%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rd 1,5-22%	200 mm overall build-up	20 mm mineral-fibre panel 325 kg/m³	with acoustic fleece	αw0.65
Rv 1,6-20%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rd 1,8-21%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rv 1,6-20%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 28 kg/m³ in PE film	with acoustic fleece	αw0.65
Rg 0,7-4%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rg 2,5-16%	200 mm overall build-up	—	with acoustic fleece	αw0.65
16,0 x 8,0 x1,5x1,0	400 mm overall build-up	15 mm polyester wool 20 kg/m³	without fleece	αw0.65
Rg 12-12%	200 mm overall build-up	—	with acoustic fleece	αw0.65
Rd 0,9-04%	200 mm overall build-up	—	with acoustic fleece	αw0.65
22,0 x 12,0 x 2,0 x 1,5	200 mm overall build-up	—	without fleece	αw0.65
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	—	with acoustic fleece	αw0.60
Rd 1,5-22%	200 mm overall build-up	20 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.60
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.60
Rg 0,7-4%	200 mm overall build-up	20 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.60
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.60
Rg 0,7-4%	200 mm overall build-up	20 mm mineral wool 44 kg/m³ in PE film	with acoustic fleece	αw0.60
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.60
Rg 1,5-11%	750 mm overall build-up	30 mm mineral wool 45 kg/m³in PE film	with acoustic fleece	αw0.60
Rg 1,5-11%	750 mm overall build-up	80 mm mineral wool 30 kg/m³ in PE film	with acoustic fleece	αw0.60
Rv 3,0-20%	50 mm overall build-up	—	with acoustic fleece	αw0.55
Rg 0,7-1%	400 mm overall build-up	30 mm mineral wool 28 kg/m³	with acoustic fleece	αw0.55
Rd 0,9-14%	400 mm overall build-up	—	with acoustic fleece	αw0.55
Rg 0,7-4%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.55
Rd 2,5-2%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.50
Rg 2,5-16%	50 mm overall build-up	—	with acoustic fleece	αw0.50
Rg 0,7-1,5%	200 mm overall build-up	—	with acoustic fleece	αw0.50
Rg 0,7-1%	200 mm overall build-up	—	with acoustic fleece	αw0.50
Rd 1,5-22%	200 mm overall build-up	—	with acoustic fleece	αw0.50
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.50
Rd 1,5-22%	200 mm overall build-up	30 mm mineral wool 46 kg/m³ in PE film	with acoustic fleece	αw0.50
16,0 x 8,0 x1,5x1,0	200 mm overall build-up	ca.10 mm Synthetic acoustic fleece/felt, density 35 kg/m³	with acoustic fleece	αw0.45
Rg 0,7-4%	200 mm overall build-up	—	with acoustic fleece	αw0.45
16,0 x 8,0 x1,5x1,0	50 mm overall build-up	—	with acoustic fleece	αw0.40
Rg 0,7-4%	200 mm overall build-up	40 mm mineral wool 45 kg/m³ in PE film	with acoustic fleece	αw0.40
Rg 0,7-1%	200 mm overall build-up	—	without fleece	αw0.35
Rd 2,5-1%	200 mm overall build-up	30 mm mineral wool 45 kg/m³	with acoustic fleece	αw0.30
Smooth	200 mm overall build-up	—	without fleece	αw0.05

Absorber class: A

Test report: P-BA 279/2006 Bild 15

NRC: 0.95

Institute: MFPA Leipzig

Manufacturer

Fural Systeme in Metall GmbH

FURAL Metal Cassette Ceiling

Description

Technical data

Measurement data

Sound absorption

Frequency values