Tiling/UF heating over old adhesive?

**D1zzy** · 12-08-2009

About to get the man wot does to tile and put in underfloor heating on my kitchen floor but on removing the old cushion floor disovered 50yr old lino tiles underneath. Man wot does said these had to come up - tried all sorts of ways but eventually managed to get them up last night after four hours spent heating each tile with a heatgun - they peeled off. However I now have a floor covered with sticky adhesive ( already had to peel off the cat!)

So eventually my question - do I need to remove this ( god knows how) or can the underfloor heating (on insulation board) be laid ontop of this. The floor is concrete, prcelain tiles to go ontop, some areas to be latexed for leveling

Thanks

**aytiling** · 12-08-2009

Not a problem. I would just coat the floor with a UBA primer (not PVA) just to be on the safe side. BTW I would have left down the lino tiles as long as they were secure, as they would have not been touching the UFH, that being on board.

**D1zzy** · 12-08-2009

Originally Posted by aytiling

BTW I would have left down the lino tiles as long as they were secure, as they would have not been touching the UFH, that being on board.

Me too but I bow to the experts - still it was a theraputic evening

**D1zzy** · 12-08-2009

Originally Posted by aytiling

Not a problem. I would just coat the floor with a UBA primer (not PVA) just to be on the safe side. BTW I would have left down the lino tiles as long as they were secure, as they would have not been touching the UFH, that being on board.

See -amateur got it wrong! apparently my tiler is not putting down insulation board cos of raising the level too much against the 3 adjoining rooms ( 1 old parquet; 1 carpeted; 1 with a chipboard floor which will also be tiled, but no UFH). He is going to paint the floor with, "luminous green" reflective paint.
Any thoughts?

**jay** · 12-08-2009

did you say paint {and this paint is designed to cover )

and

reflective paint is meant to be exposed to light so it charges itself and at night the paint glows reflective paint just checking which ones the amature never tile over paint

**D1zzy** · 12-08-2009

Originally Posted by jay

did you say paint {and this paint is designed to cover )

and

No - I think the floor will now be (screeded/latexed whatever) and the reflective paint goes on top of that. {this maybe 'cos the builders got to the floor before me and my heat gun and used their SBS+ drill with a chisel type attachment (oh I'm just so technical!!) to remove some of the tiles, and part of the concretre is now "gouged"}
The paint removes the need for the insulation board under the heating, so it doesn't raise the floor level to much - not sure of its name {I'll google}

**arttay10** · 12-08-2009

Originally Posted by D1zzy

About to get the man wot does to tile and put in underfloor heating on my kitchen floor but on removing the old cushion floor disovered 50yr old lino tiles underneath. Man wot does said these had to come up - tried all sorts of ways but eventually managed to get them up last night after four hours spent heating each tile with a heatgun - they peeled off. However I now have a floor covered with sticky adhesive ( already had to peel off the cat!)

So eventually my question - do I need to remove this ( god knows how) or can the underfloor heating (on insulation board) be laid ontop of this. The floor is concrete, prcelain tiles to go ontop, some areas to be latexed for leveling

Thanks

Although I'm not a pro tiler...
I have been in flooring for 15 years and if he's patch screeding other areas it would not harm to wash over the adhesive area to kill the 'sticky mess' and give a clean key for whatever your putting down. It would also kill any smell that may linger form the old adhesive and lino tiles. I would then seal this screed with the appropiate sealer.