Vinyl On Concrete Advice Please

[needawin]

I have a concrete floor in the kitchen with ceramic tiles on top. Getting a new kitchen fitted soon.
Would it be wise to lay vinyl on the old tiles or lift them?
What can I put under the vinyl for insulation?
Should I lay the floor first before the kitchen is fitted or after?

[Tuvok]

There is a room at work where vinyl has been laid on top of vinyl tiles - and you can see the outline of them!

[Ratty2E]

Personally I would lay the floor before the new kitchen is fitted, after all the old stuff is out. Tuvok is right in that even thick vynil could eventually show the marks of what is underneath if it isn't very level and any high spots will show wear and tear a lot sooner. If it's been tiled well and they are sound I would just lay over the top, getting the tiles up and then trying to clean up and get a smooth surface will be a nightmare IMO.

[dannyk13]

Have you thought about perhaps laying a layer of chipboard or MDF first which would give a level surface to lay the vinyl?

[Mosaic]

Vinyl will inevitably show the ghost of whatever is under it. There are apparently vinyl board-type floors (amtica etc) but these are very dear and I've never tried them.
I think the whole point about vinyl sheet is, by the time you see stuff showing through, it might need to be changed anyway. Depends on the room size, difficulty of shape etc and the cost (sod the environment).
The vinyl will feel warmer than tile underfoot. The best way to insulate and prepare the floor would be with a layer of thin plywood, but from what you describe it doesn't sound like you've got the space.

[The Builder]

A latex floor levelling compound trowelled over the tiles would hide the outline of the tiles.
A simple job, then vinyl would be fine.

Although it's tempting to lay the vinyl before fitting the kitchen, it's not necessary. It makes the fitter's job a whole lot more difficult. Someone did this to me recently. I had to faff about with dustsheets/cardboard etc to protect the vinyl while sawing and heaving units about.
Even then, I managed to gouge a hole in it ......... no one noticed though ;o)

Just make sure the vinyl is laid up to the legs of the units with NO plinths in place. The plinths will then sit over the vinyl.

[needawin]

Thanks for that. What about the insulation. Also how do I get round the problem of the kicker boards being in place and tight to the floor to get the lino under

[EcclesCake]

If you are getting a new kitchen then the the kick boards will be fitted accordingly.

[Zacs-Master]

You need to be sure that your tiles are fixed very securely. If some become loose under the vinyl it will not look good and may start to wear /split the vinyl. Personally, i would bite the bullet and take up the tiles.

[needawin]

Thanks again all