What Insulation behind tiled walls?

[DoraCake]

Hi,

I'm after a bit of advice on insulating behind aquapanel and moisture resistant plasterboard in a bathroom.

I plan on fitting a bath with over bath shower. 1 of the walls the bath goes against is an internal lathe and plaster stud wall, on the other side is a bedroom.
The other wall is an external stone wall with stud attached and lathe and plaster.

I plan on ripping out the lathe and plaster and fitting aquapanel behind the wet areas and moisture resistant board elsewhere then tiling directly on top.

I decided on the above after reading loads of threads. (Thanks to Richard C. posts!)

I'm now thinking I should fit some insulation. Would 50mm celotex/kingspan be ok?

I know there are regs. for sound proofing between a bathroom and a bedroom so reckon this might be enough for the internal wall. I'm unsure if the external wall needs something else for breathing?

I'll be getting a spark to wire in a nice big extractor as well.

Can anybody recommend anything other than the above?

cheers in advance for any replies

​

 

[White Room]

Hi,

I'm after a bit of advice on insulating behind aquapanel and moisture resistant plasterboard in a bathroom.

I plan on fitting a bath with over bath shower. 1 of the walls the bath goes against is an internal lathe and plaster stud wall, on the other side is a bedroom.
The other wall is an external stone wall with stud attached and lathe and plaster.

I plan on ripping out the lathe and plaster and fitting aquapanel behind the wet areas and moisture resistant board elsewhere then tiling directly on top.

I decided on the above after reading loads of threads. (Thanks to Richard C. posts!)

I'm now thinking I should fit some insulation. Would 50mm celotex/kingspan be ok?

I know there are regs. for sound proofing between a bathroom and a bedroom so reckon this might be enough for the internal wall. I'm unsure if the external wall needs something else for breathing?

I'll be getting a spark to wire in a nice big extractor as well.

Can anybody recommend anything other than the above?

cheers in advance for any replies

​

That surprises me, normally a lime undercoat and finish would be applied directly to the stone wall.....sound insulation is difficult due to vibration traveling through the floor and ceiling but what your doing is better than having nothing there...good luck

 

[DoraCake]

Cheers Whitebeam.

To be honest I'm guessing at the wall structure. I've not moved into the place yet but it's just up the road from my current place and was built around the same time (1900).

When I did the kitchen in my current place that was the makeup of the walls.

I suppose I wont know until I start ripping it out.

cheers.