On 10/05/2019 19:26, ss wrote:
Stripping out the bathroom, having removed the plywood to be replaced
with moisture resistant plasterboard, I find this red / white material
behind it.
Is this for noise insulation?Â* The wall the other side is a bedroom.

https://imgur.com/N20kRSq


We put fibreglass insulation into a stud wall in order to provide sound
insulation. Not sure it was either necessary or very good at insulation.
How much noise do you make in the bathroom?

According to Yahoo, the top sexual fantasy is sex in the shower, so
maybe you should leave the sound insulation undisturbed?