Sound installation for interior, Experience and suggestions Options

[Mcraneiowa]

I purchased a couple rolls of Farman adhesive backed sound material with the aluminum foil top. Curious what everybody’s thoughts are for using this in the interior, on the floors and behind the back panel.

Thinking simply roll/press it down with a roller and then tape the seams. Are there other ways or material that people prefer to use as I keep thinking of the moisture that at some point will likely get under the sound insulation material even if I tape it.

FYI, I did replace the floors then coated entire floor top and bottom with Por15, followed up with paint so I’m starting with a very nice surface. I know I can put this down and will be fine for probably at least 15 or 20 years but I would like to think I could make it last longer so the next guy won’t have to worry about rust. Like to know what others have done and what their experiences are.

[Tdskip]

On a related note, and because this was brought up, I am a huge believer in liberally adding sound deadening to the doors. It makes the experience of hearing the door shut sound approximately $84,172 more expensive (+/- $40,000).

The only car that I didn’t do this to was my 1972 350 SL which came from the factory with bank vault doors.

Do it - you won’t regret it.

[horizontally-opposed]

On a related note, and because this was brought up, I am a huge believer in liberally adding sound deadening to the doors. It makes the experience of hearing the door shut sound approximately $84,172 more expensive (+/- $40,000).

The only car that I didn’t do this to was my 1972 350 SL which came from the factory with bank vault doors.

Do it - you won’t regret it.

Been thinking about this while rebuilding my doors.

One concern has given me pause: Moisture buildup between the sound pad adhesive and the door skins—especially as the doors get wet or humid. Been trying to decide if that's a legit concern or not? Or…could the deadening be added to the door card side somehow?