Bathroom Fitting

Soundproofing advice for a bathroom that is above my bedroom

Anonymous user 09/03/2024 - 2.59 PM

I have already had soundproofing with Rockwool and Acoustiblok fitted in my bedroom ceiling and it has cut out the impact sound of footsteps in the bathroom above. I still get the sound of water though (loo flush, odd ticking noise when shower is in use). My neighbour is having his bathroom properly refitted as the grouting between the tiles is coming up and the whole thing was done v badly originally. A couple of questions 1)The new builder will use HardieBacker cement boards 6 mill on top of the current floorboards and then lay the tiles on top. It is a small bathroom 1 metre 20 X 2 metres 50. I wouldn't want any new impact noise to travel down? What do you think? He's NOT planning on using a resilient underlay (orange membrane). 2)If he does pull up the floorboards in small places for fitting the sink or loo will using my Rockwool be enough for wrapping the pipes?. 3)I'm very concerned that any new plumbing fittings will make the noise really bad - like a twin pump boosting the shower or central heating humming and ticking noises getting worse. I sound nervous because I am nervous. I spent a huge sum on the soundproofing so will go nuts if it gets worse. Your recommendations will be gratefully received.