I am researching sound deadening material and when I went to check the size of the panels to be installed on I found that half, if not more, of them had a sound deadening material on them.
1) Should all the panels have this material from the factory?
2) What are they using? I would like to stay consistent.
1) Should all the panels have this material from the factory?
2) What are they using? I would like to stay consistent.