BACKFELT
091-A600908
New
Quickinfo
to cover installations behindPET felt (made of at least 50% post-consumer recycled material)
SAC (sound absorption class) up to A
fire resistance class: B-s1, d0
Colour
General
- to cover installations behind
- black
- fire resistance class: B-s1, d0
- PET felt (made of at least 50% post-consumer recycled material)
Physical
- length 625 mm
- width 625 mm
- height 4 mm
Acoustics
- Alpha w (αw) up to 0.95 1
- SAC (sound absorption class) up to A 1
- NRC up to 0.9 1
- SAA up to 0.96 1
Equivalent sound absorption area (Aeq)
125 Hz
0.42
250 Hz
0.61
500 Hz
0.98
1000 Hz
0.86
2000 Hz
0.84
4000 Hz
0.84
1 Acoustic data calculations based on HEX-O ABSORBER 1000, cavity 1cm
