granite - TilersForums.co.uk | Tile Forums

groucho · 25-05-2008

Hi all, well got a small floor to do with granite tiles. Is there anything i need to know? going to use x7r addy. I presume wet saw all thw way? sealer?
thanks

TilingLogistics · 25-05-2008

Make sure the floor is 100% flat and bang on. Granite is unforgiving

Kev

**grumpygrouter** · 26-05-2008

Quote:

Originally Posted by groucho

Hi all, well got a small floor to do with granite tiles. Is there anything i need to know? going to use x7r addy. I presume wet saw all thw way? sealer?
thanks

Floor need to be flat as Kev said. Is it screed or timber? Heated or unheated? and yes wet saw all the way. Seal with something like Lithofin Stainstop MN.

groucho · 26-05-2008

floor is screeded.

groucho · 26-05-2008

does the floor need to be sealed before grouting and once after? thanks

TilingLogistics · 26-05-2008

How long has the screed been down? If the area is small I would use a decoupling membrane over the screed for granite. Something like Schluter Ditra or Durabase one. It will make your life so easy.

Kev

groucho · 26-05-2008

Is that just to ease the installation for flatness.

TilingLogistics · 26-05-2008

Exactly

You've got it

Kev

**GazTech** · 26-05-2008

Concrete floor, screeded with Granite tile.
1.Prime ( not PVA ),
2.Set tiles with single part or rapid flexible,
3.Seal Granite with recommended product,
4.Grout with flexible grout.
NB. On larger areas, some form of movement joint may be required. as outlined in British Standard BS 5385: Part3:1989:Clauses 19 and 23.6

**Fekin** · 26-05-2008

Quote:

Originally Posted by GazTech

Concrete floor, screeded with Granite tile.
1.Prime ( not PVA ),
2.Set tiles with single part or rapid flexible,
3.Seal Granite with recommended product,
4.Grout with flexible grout
NB. On larger areas, some form of movement joint may be required. as outlined in British Standard BS 5385: Part3:1989:Clauses 19 and 23.6

Don't be so vague Gaz

**GazTech** · 26-05-2008

Quote:

Originally Posted by Fekin

Don't be so vague Gaz

Sorry Adam, just for you then mate, in brief......

a. Over existing and/or scructural movement joints.
b. Around the perimeter of the floor and where tiling abuts columns, curbs, steps and fixed plant to base.
c. In larger floor areas tiles should be devided into bays 8-10m intervals.

Where large degrees of thermal movement or vibration are expected, the frequency of movement joints mentioned above should be increased (3.5m intervals are recommended).

**Fekin** · 26-05-2008

Now your taking the wee