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

 

[White Room]

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

There's this Mapei product for tiling onto products - http://www.mapei.com/GB-EN/Products-for-Ceramics-and-Stone-Materials/Acoustic-installation-systems/MAPESONIC-CR

 

[hmtiling]

Also Ditra-Sound to throw in the mix

 

[White Room]

Schlüter®-DITRA-SOUND | Installation | Schlüter-Systems - http://www.schluter.co.uk/ditra-sound-installation.aspx

 

[KateJ]

You guys are so great!!! the Mapei product looks good for footsteps but not airborne noise (coming up from his stereo below). Couldn't see in the spec - can it go down onto my chipboard floor?
Does it matter where the membrane goes - its blocking sound anywhere surely. I'd feel uneasy aobut tiling onto that stuff and not the hardie board. xx

 

[KateJ]

Well - thats two products to look at tomorrow - can ring the manufacturers... Not gypsum then...?

xx

 

[White Room]

The product you showed on Amazon is mainly for walls, airborne sound is probably a fair bit more complicated, if you read the questions and answers on Amazon there's some good info.

 

[Tile Shop]

Good thread. Not a subject that comes up much, but worth knowing. I'm already aware of the Ditra Sound but that can work out fairly pricey. but as an alternative:

Firstly, Hardibacker over the chipboard (6mm)
Secondly, Another one we can add to the list is the CMS Regupol 4515 Multi. approx £150 per 20 sqm roll. Fixed with their own ReguBond (about £50 per tub and covers upto 40 sqm). Where the matting meets the wall, leave a gap of 3-4mm and inlay some impact isolation tape (approx £25 per 20m roll)
Thirdly, Tape the joints with high tack tape (£12 for a 50m roll).
Lastly tile with BAL Singlepart Fastflex (This can also be used to fix the matting down using a mosaic trowel, but will work out more expensive than buying the Regubond).... Use a flexible grout.
Finishing touch, cut off the excess impact tape just below the height of the tile, and fill/cover the edges with silicone.

I presume any S2 adhesive would work out cheaper but check with the manufacturer if its suitable for acoustic matting.... (Would Tilemaster Ultimate S2 work on this type of flooring @Lee@TileTown?)

 

[KateJ]

Gosh - need to do some thinking aan learning! Thank you for all your advice! xx

 

[KateJ]

OK
Very nice chat with Barry at CMS Danskin. He currently recommends Soundlay but not 100% sure about ceramic tile. He'll let me know tomorrow and I'll report!

 

[Ajax123]

laying chipboard will only remove some but all of the airborne sound transmission. you will also find that if you screw it down impact sound will transmit very easily so he will hear you walking on it. there are a few acoustic membranes suitable for tiling onto that divorce the substrate from the top of the floor which will help with impact so you might want to put that down before inviting your neighbour to listen. as a general rule the more mass you can add the better for airborne sound and the more divorcement you can acheive between elements the better for airborne sound.

 

[Ajax123]

i could offer a screeded system but fear this might add too much height. this would involve a 30mm sound blocking board then a 40mm timbre screed on top.

http://gypsol.co.uk/media/1252/13-gypsol-timbre.pdf

 

[KateJ]

laying chipboard will only remove some but all of the airborne sound transmission. you will also find that if you screw it down impact sound will transmit very easily so he will hear you walking on it. there are a few acoustic membranes suitable for tiling onto that divorce the substrate from the top of the floor which will help with impact so you might want to put that down before inviting your neighbour to listen. as a general rule the more mass you can add the better for airborne sound and the more divorcement you can acheive between elements the better for airborne sound.

That makes perfect sense.

 

[KateJ]

i could offer a screeded system but fear this might add too much height. this would involve a 30mm sound blocking board then a 40mm timbre screed on top.

http://gypsol.co.uk/media/1252/13-gypsol-timbre.pdf

Yes. My ceiling is just over 2m high.

 

[One Day]

Yes. My ceiling is just over 2m high.

 

[KateJ]

Well in conclusion - a solution presented itself. This stuff (the 5mm) will block airborne sound. Barrier Shield | Barrier Mat | Thin Soundproofing - http://www.noisestopsystems.co.uk/wall-soundproofing/barrier-shield

I now have a moral dilemma however. Do I tile above someone's bedroom where my tenant might walk through the kitchen (directly above) at any time day or night? I could spend on impact sound blocking for my neighbour's benefit but he can contribute nothing financially. An accoustician had told me that tles have been banned on upstairs flats in London because of all the trouble they cause... is this really so?