Been to look at a domestic job tonight and got talking to the guys who were finishing off a media wall. Waffling away as you and got onto soundproofing walls when these media walls are built and the installers were telling me they double layer the walls with timbermate excel before they build ...never heard of it before but when he explained the reasoning for using 'underlay on the wall' I do get why they use it. They shown me a acoustic mat made by tecsound and it was very similar and they both have near the same dB rating but you get 3 times the area with the TM and works out alot cheaper. Never heard of it but can see their logic. ....just thought I'd share that
Yeah pretty standard to be fair, see it loads where companies buy underlays and adhere it to insulation panels for floors or walls
I've never known it but if its similar or even the same type material then why shouldn't it work I guess
It’s a load of crap, there’s not enough mass to disperse any frequencies instead of bodging it they should be using differing thicknesses of rockwool, mass loaded vinyl, air gaps etc 5-6 inches minimum thick and decoupled from the floor, ceiling and walls. As an indication of why that is would be the rough conversion is how many cycles into a distance, so a bass frequency of 20hz in a room 5m long would be 25cm Sent from my iPhone using Tapatalk