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

[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