HardiBacker & Floor Level?

[Pauly tiler]

So a total of about 9mm between the concrete and the tile,

Agree with above, once you tile the HB board you will increase the height by at least 3mm more to the underside of the tile, so you would be at least 9mm low on the concrete

 

[hmtiling]

So a total of about 9mm between the concrete and the tile,

Agree with above, once you tile the HB board you will increase the height by at least 3mm more to the underside of the tile, so you would be at least 9mm low on the concrete

I give up

 

[Pauly tiler]

We have a winner
Just kidding

 

[hmtiling]

Could someone with more patience explain that the height discrepancy would not include the adhesive bed as you'll have that on both sides!

 

[Pauly tiler]

This of course assumes that the floor boards and the concrete are level to start with.
Just for giggles

 

[Dumbo]

the tiles on the concrete need adhesive say 3mm so that negates bringing that into the equation . So what the op needs to allow for is the difference in floor heights prior to tiling i.e. 6mm Hardie plus adhesive for Hardie which is not much ( especially for me as I tread mine in )

 

[RandyC]

Thanks for the replies fellas, I appreciate the help. SLC is the way to go by the sounds of it. I'll pick up some decent S1 for the floorboard side.

I assume flexible grout will also need to be used on the floorboard tiled side, aswell as where it joins with the concrete?

 

[Dumbo]

Thanks for the replies fellas, I appreciate the help. SLC is the way to go by the sounds of it. I'll pick up some decent S1 for the floorboard side.

I assume flexible grout will also need to be used on the floorboard tiled side, aswell as where it joins with the concrete?

Flexible grout is a must . Where the two floors meet you will need something more flexible than grout i.e. Colour matched silicone

 

[RandyC]

Flexible grout is a must . Where the two floors meet you will need something more flexible than grout i.e. Colour matched silicone

Perfect, ok good job I asked that, I will be using a grey grout is that something you can pick up easily from a tile store, the silicon I mean, or is it just general no nonsense silicon type stuff?

Also I assume it's best to get the Hardiboards down and then sort the SLC up to the same level?

 

[Dumbo]

Perfect, ok good job I asked that, I will be using a grey grout is that something you can pick up easily from a tile store, the silicon I mean, or is it just general no nonsense silicon type stuff?

Also I assume it's best to get the Hardiboards down and then sort the SLC up to the same level?

Most grout manufacturers do a matching colour silicone grout . Yes Hardie first the level up to it .