Am doing my loft bathroom floor and wanted to confirm my order of flooring build up is correct?
-22mm chipboard
-12mm Hardiebacker, glued down using tile adhesive and 12 screws per board. 3mm expansion gap around perimeter of floor, which I'll fill with silicone (so there's no gaps when laying SLC)
-Electric underfloor heating - does this need to be glued down with tile adhesive or is it OK to roll out the self adhesive mat directly onto the Hardiebacker boards?
-Self levelling compound
-Tile adhesive and tiles
Chipboard is already in (glued and screwed) so will be doing hardie backer onwards
-22mm chipboard
-12mm Hardiebacker, glued down using tile adhesive and 12 screws per board. 3mm expansion gap around perimeter of floor, which I'll fill with silicone (so there's no gaps when laying SLC)
-Electric underfloor heating - does this need to be glued down with tile adhesive or is it OK to roll out the self adhesive mat directly onto the Hardiebacker boards?
-Self levelling compound
-Tile adhesive and tiles
Chipboard is already in (glued and screwed) so will be doing hardie backer onwards
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