Akustik dB Finder

NRC Canada

Reference

Date: 4/27/2022
Image with different points.
Ln,w(CI)IICRw(C,Ctr)STC
80(-)3055(-,-)55

No.ComponentMaterialHeightWidthWeight
1Concrete slabConcrete155 mm----

Airborne Noise Reduction Rw

Impact Noise Level