We're about to lay about 60 sq M of floor tiles over a suspended floor in
out holiday cottages. Now the floor is 9"x2" joists, and although it was
waterproof flooring chip board we've ripped it up and are replacing it with
18mm ply to give as rigid a floor as possible. For peace of mind I'd prefer
to put a layer of decoupling membrane, but it's unbelievably expensive -
about £450 for that area. (unless someone knows a more economic source).
What is the panels experience of tiles over a suspended floor? The room I'm
in at the moment was conventional joists and chipboard, tiled over without a
membrane, and the tiles were ok for the five years before we refurbished,
and again we laid 18mm ply but as it was a small area I put in a membrane.
The bathroom "I" did 6 years ago has been fine.
Stiffened joists up with noggins every foor or so and then screwed 18mm
Then put electric heating mat down covered with epoxy tiling compound
then 300x300mm ceramic tiles.
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