Advice on laying 600 x 600 Quartz please

[4x4]

Hi I need to lay 20 metres of 600 x 600 egineered Quartz tiles,

the and adhesive & grout have been supplied
the addy supplied is Mapei keriflex maxi flexible S1
with Keracolour grout + fugolastic liquid
are these suitable?

its a concrete kitchen floor which will have "Warm up" UFH going down

can you also recommend a SLC to go over the UFH, it needs to fill around 10mm depth

any tips and advise would be greatly appreciated as I have not laid this size tile before

many thanks Dave

 

[The Legend; Phil Hobson RIP]

Hi Dave, is the 10mm depth due to the shape of the floor?

 

[Ken Bruty]

If these are resin quartz tiles, I wouldn't do anything until the manufacturer has put in writing to you that these tiles are suitable over ufh, there have been lots of curling up problems with resin tiles in the past through incorrect adhesive being used and issues with ufh.

 

[4x4]

hi height is due to client wanting it to match hallway floor level which is about 25mm higher than than concrete kitchen floor which is not that flat anyway,
also I'm not sure if they are resin filled I have not seen them yet but I no they are called "Miraton" Egineered stone made of quartz. cheers

 

[doug boardley]

will you be laying some insulation boards under the ufh?

 

[4x4]

the concrete floor has seem to have like white polysterene insulation around 15 mm beneath the surface does this sound normal?

 

[White Room]

A floating floor

 

[4x4]

no its not floating,
its seems to be solid concrete but the client told me it had been insulated with what looked like white polysterene somewhere beneath the surface I'm not sure how far down now, actually could have been alot more than 15mm, it was visable where a big chunk was out the floor from where the last floor was taken up, does this sound strange?

 

[White Room]

Must be insulation under the concrete base

 

[4x4]

any recommendations for a SLC for this installation,
when would you use a 2 part latex as opposed to just a water mix
many thanks for any tips

 

[kaharrison9]

Was recently asked to instal 600x600 quartz on top of a wet underfloor heating system but after talking with the client he realised it wasn't worth the risk of the possibility of shrinking and curling of the tile and the tile supplier who earlier had said there would be no problems with ufh would not guarantee the tiles.
Also don't think the Keraflex maxi adhesive will be fine either.Needs to be keraquick with latex added or if you want a latex based addy with a slightly longer pot life then elastorapid which isn't cheap.Once quoted on usng it and it was around £70

 

[4x4]

many thanks kaharrison, this is the addy the tile supplier recommended same old story aye,

on the tile website it states Miraton is produced with quartz that reaches 7 on the Mohs Scale of Hardness (Diamond 10, Sapphire9, & Topaz 8) making it stronger than natural and other artificial stones.
also its Low porosity makes it highly resistant to extreme temperature conditions.

if this is the case I wonder how it can be affected by the heat of UFH?

this tiling lark is getting harder :mad2: where those kitchen splashback jobs gone!

 

[Daz]

Keraflex Maxi is fine for this.....

Cement based adhesive for thicknesses from 3 to 15 mm, with good deformability, good adhesion strength and no vertical slip for ceramic tiles and stone materials.
Applications:
Interior and exterior bonding of ceramic tile and natural stone floors and walls (as long as they are not absorbent) on conventional substrates such as:
• Cement screeds and underfloor heating installations.
• Cement renders or lime and cement mortar.
• Gypsum boards.
• Brick walls and blocks.
• Concrete with more than
4 months curing time.
Keraflex Maxi is suitable for bonding small and large sizes on uneven substrates without having to smooth the flooring beforehand and for the installation of tiles (even heavy) with no vertical slip.
Also suitable where tiles have to be laid onto existing tiles on floors and walls and for bonding of insulating materials such as expanded polystyrene, expanded polyurethane, rock and glass wool, Eraclit® (wood-cement panels), sound-deadening panels, etc.Coverage
1,2 kg/m2 per mm of thickness.Packaging
25 kg bags.

I would contact the tile manufacturer via email for confirmation regards the UFH, that way you will have a written proof.

As for the slc, you could use Mapei Fibreplan or Ardex Arditex NA or really any slc that is specified for use with UFH.

Good luck,

Daz

 

[DHTiling]

You will have to check that the conglomerate tiles are suitable for UFH first then also i would recommend a none water based adhesive to prevent dishing from the wetting of the adhesive...

Mapei grani-rapid is one i would recommend..

 

[4x4]

as I have not been supplied a pourable adhesive am I still back skimming these 600 x 600, and what trowel would be most suitable?
cheers for any advice

also does the dewalt 24000 cut a 600mm length tile in one pass