Hello,  I’m wanting to tile a porch area of about 1x1.5m.

 

It’s a suspended timber floor in a Victorian house. I have laid a vapour membrane and then 18mm T+G OSB.

 

I’d like to lay some left-over tiles from our bathroom, they are a terrazzo resin tile that measures 600x600mm and 12mm thick. Ideally, we would get the porch floor to the same level as the wood floor and have a flush fit. I read that OSB isn’t suitable to lay tiles onto, and am wondering is a sheet of 6mm No More Ply would be suitable under the tiles?  

 

The build-up of the layers be:  

12mm tile  

6mm NO More Ply  

18mm T+G OSB  

 

Thanks,

Tom 

Any cement / sand backer board would be suitable, eg, HardieBacker, Nomoreply.

This is an internal porch?

Edited February 4, 20251 yr by JamesP

Yes its internal