Tiling Dipped Wooden Suspended Floor

[mark70D]

Hi,

I am looking to tile my fathers new kitchen. The kitchen is situated on the first floor of a detached 1900's property (split into 2 flats), with a suspended, original timber boarded floor (which we have screwed down). The area is approxrimately 4m x 2m. I am hoping to lay 330 x 330 mm x 10mm thick, ceramic floor tiles.

The floor currently has a dip of 11 mm at it's deepest point, along a length of aproximately 1.5m (opposite a fireplace flagstone that has been removed and screeded), near to the sink.

My plan was to fix 6mm Knauf Aquapanels cement board according to manufacturers instructions (flexible adhesive and screwed) and then use a self levelling compound (SLC) on top of the cement boards to remove the dip and level the floor. Finally to use a flexible adhesive to fix the ceramic tiles to the SLC. Is this correct? All advice much appreciated. Thanks in advance.

 

[Stef]

Exactly as you have said.

 

[LM]

Hi,

I am looking to tile my fathers new kitchen. The kitchen is situated on the first floor of a detached 1900's property (split into 2 flats), with a suspended, original timber boarded floor (which we have screwed down). The area is approxrimately 4m x 2m. I am hoping to lay 330 x 330 mm x 10mm thick, ceramic floor tiles.

The floor currently has a dip of 11 mm at it's deepest point, along a length of aproximately 1.5m (opposite a fireplace flagstone that has been removed and screeded), near to the sink.

My plan was to fix 6mm Knauf Aquapanels cement board according to manufacturers instructions (flexible adhesive and screwed) and then use a self levelling compound (SLC) on top of the cement boards to remove the dip and level the floor. Finally to use a flexible adhesive to fix the ceramic tiles to the SLC. Is this correct? All advice much appreciated. Thanks in advance.

View attachment 81703 View attachment 81704 View attachment 81705 View attachment 81706

Just to 'belt and brace it', use flexible levelling compound as well

 

[mark70D]

Thanks guys.

 

[mark70D]

Hi,

Forgot to ask, what size notched trowel would I need? Tiles are ceramic 330 x330 x 9mm thick. .

 

[LM]

Hi,

Forgot to ask, what size notched trowel would I need? Tiles are ceramic 330 x330 x 9mm thick. .

Go for a 10mm round notch, solid bed trowel. Make sure to cover the back of each tile with a flat skim of adhesive as well

 

[mark70D]

Thanks for all the info guys.

Final question. What size spacing for the grout lines, would be needed?

 

[Stef]

Thanks for all the info guys.

Final question. What size spacing for the grout lines, would be needed?

British standard are 3mm on a floor but really depends on how good your tiles are for size.

 

[mark70D]

Thanks again Stef and Lee Mac. Your help is very much appreciated.