Leveling floor with cement board

[Flintstone]

Why no Hardie backer. Is it because you've read it somewhere as well or actually know why? If hardie is installed on to screed with flexi addy then flexi addy used above then why not if aloud on top of a timber floor with ply.

You have just made the statement that it can’t be used and now you are suggesting it can be.

Nmp say you can and hardie say you cannot. There’s no point using either on a solid floor anyway when insulation board it better easier and cheaper

 

[Handyeire]

You have just made the statement that it can’t be used and now you are suggesting it can be.

Nmp say you can and hardie say you cannot. There’s no point using either on a solid floor anyway when insulation board it better easier and cheaper

I have been just going on what I've read online however I've know of some who have used it. Not myself thou.

What if one can't get the insulation board. NMP should do ok but I wouldn't build it up just in case.

 

[Handyeire]

I've found 6mm nmp to warp when fixed with tile adhesive. Wouldn't try it again.

I have used it and never no probs.

 

[hmtiling]

I have used it and never no probs.

Crack on then, but there are better, easier and cheaper options as Local says.

 

[average]

Insulation board is perfect for covering screed floors! That’s one of its main uses

Insulation board is perfect for covering screed floors! That’s one of its main uses

This might sound silly but is thermal board insulation board.

 

[average]

You have just made the statement that it can’t be used and now you are suggesting it can be.

Nmp say you can and hardie say you cannot. There’s no point using either on a solid floor anyway when insulation board it better easier and cheaper

How is insulation board better than NMP. Is NMP not more solid than insulation board.

 

[Flintstone]

Is this the same person with two different accounts ?

 

[average]

Is this the same person with two different accounts ?

No.

 

[Tile seller]

Nmp needs to be primed both sides when being stuck onto concrete.
I think the warping issues have arisen when this isn't done.

 

[Bond]

Cement reinforced faced insulation boards, prime floor, use flexible adhesive to bond to floor, stagger board joints and fix scrim tape. In addition you could core holes staggered across the board adhesive will lock boards in position, you may also need to weight boards until adhesive sets. When adhesive sets you could add additional fixings into concrete although probably not necessary. Good luck.