My 1st Job Gypsum backer board, Mapie grout and soundproofing.

[KateJ]

Hello
I never did find a local plumber to advise me - so let's see if this works...

I'm hearing that Mapier grout is the very best and there seem to be various kinds.... I'm keen to prevent mould in the kitchen and bathroom. Can anyone vouch for it - or will any grout do?

I'd really like to soundproof my floor so that the guy downstairs can't hear contact noise from above but my chipboard floor has plasterboard immediately below it so I can get it up easily.

I had a chat with Gypsum this morning about their 6mm backerboard. It must be fixed with grout and screwed down as well. Other advice I've been given is 18mm plywood fixed to the floor - then tile.

There are various soundproof membranes on the market 3mm thick on a roll? How well do these work in your experience?

What do you guys think?

 

[White Room]

I'd really like to soundproof my floor so that the guy downstairs can't hear contact noise from above but my chipboard floor has plasterboard immediately below it so I can get it up easily.

Do you mean plasterboard fixed on top of the joists with chipboard fixed onto that...

 

[KateJ]

Hello
Sorry - I wasn't clear. My floor is cheapo tongue and groove chipboard and directly below that is plasterboard (no gap). I want to tile the entire floor so - gypsum backerboard + tiles or some kind of soundproof membrane + backerboard + tiles? ....OR some kind of soundproof membrane + 18mm plywood+ tiles?
Kx

 

[KateJ]

... I would not remove any existing flooring........

 

[White Room]

Do you have any pics that show what your getting at, the plasterboard thing is what I tried to describe ??

 

[KateJ]

Gosh sorry Yes!!!! I'm not sure what is below the plasterboard. Joists must be there somewhere but not seen them. Kx

 

[White Room]

Sounds like you have a system called "Gyproc S1 floor system" which believe it or not was designed as a sound insulation sound system, there should be, if I'm right, insulation below the plasterboard as well.....it's working well then.

 

[KateJ]

The guy donwstairs had 6 years of hell with asbo tenants.. I'm concerned that tile will resonate below. His bedroom is directly beneath my galley kichen (someone will walk through it a lot). xx

 

[White Room]

My be worth checking that there is no regulation on what floor finish maybe allowed in a flat/apartment from the lease hold or tenancy.

 

[KateJ]

There is no problem - checked with solicitor. Soo - any comments on my cunning plan?
I got some 18mm ply so will screw it down and arrange tiles on top. I'll invite my neighbour to listen to me walking on itas an experiment!!!
Kx

 

[White Room]

6mm hardie glued with a single part adhesive and screwed, then a 3mm soundproofing

 

[KateJ]

ooohhh!!! What's hardie? What's a single part adhesive? So sound proof membrane at the bottom??? It's the great British Tile off! xx

 

[White Room]

Hardie backer board HardieBacker EZ GRID 6mm for Floors (HardieBacker 250) | Dry Lining | Plasterboard | Specialist Board | | Insulation Express - http://www.insulationexpress.co.uk/Specialist-Board/HardieBacker-EZ-GRID-6mm-for-Floors-%28HardieBacker-250%29.htm

Single part adhesive, there are many brands about but go to a respectable tile outlet who will best advise.

Sound proof on top of the hardie boards.

 

[Rich Midge]

Think I'd go with a 6mm Marmox type board then the soundproofing. All glued and siliconed around the perimeter. I'd imagine you may get more sound transferred through mechanical fixings.

 

[KateJ]

Would you really tile straight onto a sound proof membrane? I thought backing board was designed to take tiles. This sort of thing.... https://www.amazon.co.uk/Advanced-Acoustics-Soundproofing-1-25m-thin/dp/B00BSBMFBM