Carpets, Lino & Flooring

Laying Ceramic Floor Tiles where previously oak Parque flooring

Anonymous user 03/03/2024 - 3.20 PM

I am removing an old oak block parque floor in the hallway of a 50's built house and its been laid on a bitumen base. The old floor came up pretty easily and the bitumen base is sound and level. I want to lay a new 600 mm x 600 mm ceramic tile floor and this would match the same flooring already laid in the kitchen. Having removed the wood parque floor I now have a height difference of approx 20 mm to make up between the height of the hall way bitumen base and the kitchen floor in order the ceramic tiles will run through level. I have read lots of detail about the issues with bitumen floors and sealing it with the correct products before laying self leveling screed and its seems there are a number of options. However by far the easiest would seem to be to lay thick plywood or block board over the bitumen base to make up the difference in levels and screw it down at 300 mm centres. Then seal the plywood/block board and lay the ceramic tiles over the top. After all upstairs bathroom tiled floors tend to be laid on a plywood base and i would have thought a 20 mm depth would be sufficient to stop any flexing of the floor if its screwed down. Any suggestions or experience of problems greatly appreciated.