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Acoustic Ratings (Acoustic Rating Panel (7mm panel only (with no air…
Acoustic Ratings
Acoustic Rating Panel
Disclaimer
Absorption table
No Backing (Default)
7mm panel only
with no air cavity
Default for selecting Acoustic
Backing from the toolbox
with 90mm stud cavity
with 400mm ceiling cavity
with 1100mm ceiling cavity
7mm panel + 25mm batts
7mm panel + 50mm batts
7mm panel + 75mm batts
7mm panel + 100mm batts
NOTE:
Acoustic Backing
No Backing
Timber
Aluminium
Group 1 Rated
Fire Rating Group 1
Non-Combustible
Fire Rating Group 3
Combustible
NRC
Empty Ontrax
No Backing
NRC=0.0
7mm panel only
with no air cavity
NRC=0.25
with 90mm stud cavity
NRC=0.4
with 400mm ceiling cavity
with 1100mm ceiling cavity
7mm panel + 25mm batts
with 90mm stud cavity
NRC=0.71
with 400mm ceiling cavity
NRC=0.86
with 1100mm ceiling cavity
NRC=0.87
7mm panel + 50mm batts
with 90mm stud cavity
NRC=0.85
with 400mm ceiling cavity
NRC=0.86
with 1100mm ceiling cavity
NRC=0.87
7mm panel + 75mm batts
with 90mm stud cavity
NRC=0.85
with 400mm ceiling cavity
NRC=0.86
with 1100mm ceiling cavity
NRC=0.87
7mm panel + 100mm batts
with 90mm stud cavity
NRC=0.87
with 400mm ceiling cavity
NRC=0.89
with 1100mm ceiling cavity
NRC=0.90
NRC calculated higher should be present as NRC=1.00