Leveling insulation boards

[TJ Smiler]

Hi all

Anyone know if it's possible to flatten/level out a 28m2 floor using 6mm insulation boards?

Customer is having UFH, his current substrate is concrete and it is pretty all over the place with plenty of high and low spots...... was gonna get rid of some of the high spots using my grinder and then SLC the low spots before fixing the boards, i then wondered if it possible to avoid this stage and just pack the boards out and level with them (tiles are gonna be 600x600 porcs)

Your opinions would be appreciated?

Thanks
Toby

 

[AliGage]

I wouldnt.
Sort out the substrate first, SLC to get it flat. Then install the wire and SLC again.

 

[TJ Smiler]

I wouldnt.
Sort out the substrate first, SLC to get it flat. Then install the wire and SLC again.

Thanks Ali, that's what i thought mate. You have rested my troubled little brain.....

 

[White Room]

Do you mean concrete or screed ???

 

[TJ Smiler]

Do you mean concrete or screed ???

Well it's actually a mixture of both.......very old house with a an extension built about 25 years ago. The old stuff is concrete and the newer is screed. With a bit of SLC in spots for good measure

 

[White Room]

Well it's actually a mixture of both.......very old house with a an extension built about 25 years ago. The old stuff is concrete and the newer is screed. With a bit of SLC in spots for good measure

The reason I asked is that quite a few call screed concrete, that is a pet hate to be honest...it's just me though:smilewinkgrin:

 

[TJ Smiler]

The reason I asked is that quite a few call screed concrete, that is a pet hate to be honest...it's just me though:smilewinkgrin:

Lol grumpy......... No, you can relax matey, i knew what i was looking at

 

[Ajax123]

The reason I asked is that quite a few call screed concrete, that is a pet hate to be honest...it's just me though:smilewinkgrin:

No it's not just you mate... It is also one of my pet hates along with people who call a concrete mixer a cement mixer....

 

[peteablard]

As above, definitely easier and quicker to level first.