On a previous episode I saw an insulation installer that proved the sound dampening by placing an alarm in a 5 gallon bucket, which was lined with insulation. After placing a small bag of insulation over the hole the sound was gone. I believe the installers company was thermotech or something of that nature. Does anyone remember this episode or know that manufacturer and product.
It appeared to be a grey insulation, like the real old stuff, but was revamped and setup for spray(sticky/glue) in installation.