The ear is a lot more aware of higher frequencies, which hence surface louder. The size is logarithmic and an increase of 10dB approximates to your doubling of loudness whereas a change of 3dB is nearly obvious. Do I would like a vapor barrier? Depends on local weather and the https://messiahmibtm.theisblog.com/34971585/the-5-second-trick-for-noise-reduction