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Discuss Deflection issue with No More Ply down in the DIY Tiling Forum area at TilersForums.com.
It will cost 100 pounds to strengthen floor why not just do that
Yes it was made to help eridacte movement,No but was made to help eradicate movement after preparing a floor properly
He's already put down 6mm nmp, if the sub floor was prepped properly then I would have used 6mm Hardie backer & then tiled.Yet I said put another 12mm of ply down preferably 18mm first to strengthen floor .I use ditra.to assure strength sticking to a solid wood floor .
15mm ply overlay BS + Ditra.Some tilers love hardie backer .but as I said if you prep floor properly with right thickness of ply you get no issue
& that's why I stated Ditra isn't going to help.Floor bouncing
Stop double posting. I'm fed up of merging your posts.That's ok but he's getting over a problem
Floor bouncing
Controversial Kev is your new nick name.
I have over boarded many many bathroom floors with nmp and not had any problems. I would judge deflection with my eyes, if you can see any movement when your walking on it or lightly bouncing on it then it's probably not right, shouldn't see any movement. But if there is some movement it's only gonna be the joists.
Don't bother putting anything over the nmp it's a waste of time.
Reply to Deflection issue with No More Ply down in the DIY Tiling Forum area at TilersForums.com