Need HELP !

[TPW]

Why would be bathroom floor tiles be changing colour, I had a tiler come in and do everything for me, it is a wet room and he explain about the tanking and he was very good and did a brilliant job, i have raised it with the manufacturers and they said it was a fixing issue, so i went back to the tiler and he said he would come back and sort out any problem, on the manufacturers instruction, he removed all the grout we left the room to dry out and he re grouted, but this has not worked ! does any one have a clue what is happening?

[aph257]

what type of tile are they?
What coluor tile?
What colour adhesive?

[deanotile]

as above if you can give us a bit of info on the materials used and perhaps some pics.

[TPW]

Laura ashley cambridge beige floor tiles 450x450, Instarmac Ultra Proflec single part rapid set flexible adhesive. im not sure about the colour, grey i think!?!?!

[Scott]

Are they changing colour completely or just from the edge inwards as if its frames with grey?

If so it sounds like moisture ingress through the grout and into the biscuit of the tile.

[TPW]

no the whole tile has changed colour there is only 1 tile now that is the original colour, the thing is its not a consistant colour it looks like the tiles are wet.

[Scott]

Where in the room is the good one? Is it away from the wet area? It can really only be moisture or pigment ingress from the edge of the biscuit or through the back of the tile.

What colour are they going and what was the prepration of the floor? Plywood bleaches brown when it gets wet if that helps but most light colourd tiles go a kind of grey when the water gets into them.

[TPW]

they are going a blueish colour.

[tfs]

My first though is that it sounds as though something is being absorbed into the biscuit of the tile. This may be dampness/ water etc.

[kilty55]

is it a slow setting adhesive he used?

was it grey and are they solid bedded or has he dot and dabbed possibly

[jay]

any chance of some pics thanks

[TPW]

It has been solid beded, sorry i cant get pics at the mo im at work.

How would water be getting in to the tile ?

[jay]

me thinking you may have a leak and being waterproofed the water cant go anywhere normally its just the edges of the tile that change color (picture framing) but for the whole tile to change means the back of the tile is saturated take it the tile has a brown biscuit back . does the room have a walk in shower and did you use a puddle flange

pics would be better

[Scott]

From looking a the tiles i think they are a light biscuit, but if it s a wetroom then i reckon jay is right instead oif it framing the tile its being absorbed across the whole tile as the water cant disperse anywhere.

[whitebeam]

How much use does the shower get per day

[timeless john]

As it happens I've just fixed the 250x400mm Laura Ashley Cambridge wall tiles this very day!
They are made in England (and that should tell us something) and they are a very porous biscuit indeed with an extremely soft glaze.
I have not seen the actual floor tile you have ie 450x450mm Laura Ashley Cambridge, but if it is similar to other English made floor tiles in the Cristal range they are sold as bathroom floor tiles for use with bare feet!!!!. They do not recommend shoes.
In my experience these tiles are NOT suitable for floors, let alone Wet room areas and I'd have refused to fix them ( which I have recently done when pointing out to the client this useage). Check the boxes for class of resistance/area of use and you may well find this tile is NOT suitable for the purpose purchased.
The colour change would be a water ingress from either the joint - through the grout - or through the soft glaze!

[TPW]

me thinking you may have a leak and being waterproofed the water cant go anywhere normally its just the edges of the tile that change color (picture framing) but for the whole tile to change means the back of the tile is saturated take it the tile has a brown biscuit back . does the room have a walk in shower and did you use a puddle flange

pics would be better

The tile has a red biscuit and it is a wet room and the whole room was water proofed correctly with a tanking system, there is a electric underfloor heating mat installed as wel, could this be a problem ? how can water be getting to the back of the tiles ? when they have been grouted ?

[jay]

grout is not waterproof and if no puddle flange fitted any water that goes through grout or gaps has no were to go due to waterproofing then it is absorbed into biscuit of tile and normally on cheaper tiles changes the color
would help if you could give us a run down of instalation method starting with sub floor and then listing what was done next ie cement sheet or w/p or ufh and materials used best bet is a pic of whole effected floor were water stop bars use hope this helps

jay

[aph257]

sorry my friend but cement based grout is not waterproof, regardless of what is says on the label.