Originally Posted by Dave

For what good the ply will do for insulation with the ufh then i would just rip it up and tile onto the floor it's self...

Honestly we are not giving you advice to cause you grief, we are here to make sure you have a long lasting installation....Your tiler needs educating as well i think...

Do yourself a big favour and remove the ply...and just tile the floor ...you will probs need to mechanicaly remove the glue but you want the job done right...

The choice is yours really and we wish you good luck....

that would mean me ripping the kitchen out and i cannot do that.

thanks for your time.

Originally Posted by Hayden Goy

nothing chap only the fitted kitchen

If it was me, I would cut the play at the perifery of the kitchen and the units (leaving them in situ) and lift the ply away completely. Speak to our sponsors Uheat and get some 6mm insulating backer board and glue this down where the ply was originally, with proper tiling adhesive and if possible, as Dave has said, plug and screw it as well. Lay your ufh mats/cable and then cover over with SLC. once the SLC has set tile you floor as you were going to do.

You say cost is an issue here. Any additional cost you incur will be more than made up in savings on running your heating system with the insulating board installed and in addition, your tiling will have a much better chance of survival.

Originally Posted by Hayden Goy

whats the thinest you can get??

Hi

Click on the link i put in post #7.
6mm is the thinest, so thats the same as the ply and alot stronger.

Good luck

HG.

Why don't you cut up the 6mm plywood where you are going to put the tiles and underfloor heating and replace it with 6mm insulation boards.
You won't have to go under your kitchen units and this way you will get the full benefit of 200watt heating.

John.

You can just do as grumpy say's and cut the ply at the units....and then lay 6mm insulation boards with flexible adhesive.....and NOT screwed and plugged.....( only ply russ)..

Originally Posted by timeless john

HG.

Why don't you cut up the 6mm plywood where you are going to put the tiles and underfloor heating and replace it with 6mm insulation boards.
You won't have to go under your kitchen units and this way you will get the full benefit of 200watt heating.

John.

Pretty much what I said John.

Originally Posted by grumpygrouter

Pretty much what I said John.

I'am a slow typer - by the time I find my glasses, make myself a drink, read all the comments its 10mins to post.
It just goes to show - great minds think like proper tilers.

John.

Originally Posted by Dave

You can just do as grumpy say's and cut the ply at the units....and then lay 6mm insulation boards with flexible adhesive.....and NOT screwed and plugged.....( only ply russ)..

Had 6mm hardie in my head Dave!!! Doh!!

Originally Posted by grumpygrouter

Had 6mm hardie in my head Dave!!! Doh!!

you will be all please to know that i'm going to order some ekoboards guy's its only about £60

is there any difference from BB Insulation boards and Ekoboards?

they both are the same spec

see link below

6mm BB insulation board - £4.00 : Planfigure LTD, The Warm Floor Company - UK Specialists in Underfloor Heating Kits & Installations.

Originally Posted by Hayden Goy

is there any difference from BB Insulation boards and Ekoboards?

they both are the same spec

see link below

6mm BB insulation board - £4.00 : Planfigure LTD, The Warm Floor Company - UK Specialists in Underfloor Heating Kits & Installations.

Going by the photo, they look the same as ecoboards, says pack of 30, can you buy individually? glad you're doing the right thing, too many people come on here wanting the 'wrong answer' if you know what I mean. Good Luck

Originally Posted by Hayden Goy

you will be all please to know that i'm going to order some ekoboards guy's its only about £60

Very glad to hear it. You will not regret your decision. I have used these boards and they are excellent - Top Quaility!

Originally Posted by Hayden Goy

you will be all please to know that i'm going to order some ekoboards guy's its only about £60

Well done HG! You can be happy when you leave you have done a top job that will last! Well done

Stick on a few photos when you finish

So all back to the first question. What about grout?? LOL

Any flexible grout, I use mapei ultracolour plus in the main these days.

Doing 50m2 with quartz tile (gulf stone).prep is 9mm ply on floorboards then ply will be bonded with p.v.a. Is this sound enough.

Originally Posted by eamonn06

Doing 50m2 with quartz tile (gulf stone).prep is 9mm ply on floorboards then ply will be bonded with p.v.a. Is this sound enough.

..NO pva.. http://www.tilersforums.co.uk/tile-a...s-primers.html

Originally Posted by Dave

..NO pva.. http://www.tilersforums.co.uk/tile-a...s-primers.html

read the advice on pva vs primer . makes sense.