no more ply

I have the old stock no more ply down unprimed. (Their new stock comes pre-primed). Mapei suggested using Primer G before tiling with keraflex maxi s1. They did not recommend using SBR for some reason. Why might that be? What is the correct dilution of primer G to use on no more ply? The...

Hi, I am trying to achieve a low floor build up including wet UFH over a new suspended timber floor in our barn conversion. The area is large, 21m x 8m. Having spoken to various UFH suppliers I have come up with the following: 22mm chipboard subfloor (already laid) 25x25mm battens at 200mm...

using no more ply 6mm boards and screws. screws will not go flush. staying slightly proud

Hi I’m a total beginner. I had a builder fit some laminate in dining room and while he did that he noticed we had the tiles for the hallway. Long story short he did the tiling but after few months we had grout coming up and tiles coming loose. Then discovered he hadn’t put anything over the top...

need some advice, did not read instructions properly, and put undiluted SBR tilers primer onto backer boards , the boards have a shiny finish to them now -- will this be an issue when tiling ?

Hi All, I’ve searched endlessly for an answer to this and can’t seem to find an answer, so I thought I’d bite the bullet and ask. We’re redoing our en-suite and have found that the existing flooring has completely disintegrated, so it’s gotta go. We’ve got two options: 22mm No More Ply...

Hello Folks, I need to sort my floor out before I can lay tiles on it so seeking advice from the knowledge base out here. I have floorboard on top of joist. On top of the floorboards, I have wooden battens placed on average of 360mm - 400mm centre. Wet UFH has been run across the wooden...

Hi, I bought 6mm No More Ply for my bathroom floor before I tile. As you can see the floorboards are not perfect, and there is a piece of ply patching in one section. It all feels quite solid to me, but not perfectly flat everywhere as the boards are old. My worry is that when I put down the...

Of the new NMP boards, which side comes already primed? The smooth side or the rougher side? Is it necessary to prime the side facing down before using the mega strength adhesive? I expect the megastrength would bond better to a porous surface so I think better to fit the non primed surface...

My house was built in 2018, the floor is sheet boarded which I believe to be green chipboard. I am told these are bonded together as well as to the I joists. There is not a lot of movement but I am no expert. So I ask "is it necessary to use a product like no more ply when tiling a first floor...

Hi, I'm installing aluminum spreader plate under floor heating between joists (1930s house), and I'm thinking of using 22mm No More Ply over the joists, then tiles. What do you think about this setup? Is that better than ply plus a thinner backer board? Will I still get enough heat transfer...

Hi, we've been victim to an AWOL builder who has not left enough space for us to insulate with 50mm pir board, screed and then tile. I was thinking 50mm PIR board over concerete, chipboard and then no more ply. Should I self level the concrete, assuming the concrete is level but just bumpy or...

Hello, I am planing on using no more ply over my existing 18mm flooring to lay 600x300 porcelain tiles. Would there be any benefit in laying 2 layers of the 6mm no more ply to create 12mm covering. Will this make the floor stronger or is the 6mm enough. The joist are 8x2 at 16inch...

Hi, I have been reading through all the info around No More Ply and your posts on the topic but am still unsure how to level the surface beforehand. Any help much appreciated. I have old floorboards they are tightly packed however there is some variance in the levels of the boards, and also...

Hi, I am replacing a tiled floor and will need to overlay with 6mm backer board. This is on top of 15mm ply over wet UFH in dry screed. I need a backer board with the highest k-value (lowest R-value). So far from the data sheet 6mm hardiebacker has a k-value of 0.19W/mK. Does anyone know...

Hey all, So I'm about to start working on a wetroom project on my first floor (and am not interested in UFH). Naturally, this is currently timber floorboards - which are in good nick, however, in a previous thread, someone posted that I should remove these and place 22mm NMP down directly onto...

Apologies this is so long winded, but hopefully you're an understanding bunch & you'll stick with the novel and provide a straight opinion on this. I'm a competent DIY'er (ex-spark), but it's a while since I've done any DIY tiling at home. I'm now re-doing the kitchen floor/walls in a 1960’s...

Hi, I'm installing my bathroom. I've used No More Ply around the shower area walls and on the whole floor. The instructions say to prime it with their SBR primer to waterproof the boards. I have bought Mapei Rapid Set Flexi to tile the walls and floor. The instructions on this say I must use...

Hi, Looking at tiling the floor of my bathroom. No UFH just plain tiling. Whats the preferred base? Fixing onto solid floorboards (no squeak or bounce). Screwed down NMP or hardiebacker, or any other product suggestions? Thank you for reading John.