Got a customer who has put an water underfloor heating system in himself (done a good job tbh) Sand/cement etc Its all flat, so just needs minimal screed prep etc Ok, heres the thing He made the s/c mix up in 2 batches and didnt 'join' the mix in the centre of the area. both areas are about 3.5x3m each, side by side (room size 6x3.5) And by his own admission, when he whacks the heating on, the gap from the two seperate areas of floor expand/contract quite visibly... Hes already scared off the floor tiler who was going to be doing the job lol Now im wondering whats the best method for attacking this? Suggestions?
haha Ye, that would be the easiesr solution no doubt lol He's chosen davinci tile on the 45 with a border Adurapid i dont think would work as it could prob crack with the expansion & contracting?
Tell him to try increasing the heat gradually as its meant to be. See what happens if he gets it up to heat over a few days.
I had this at mates house so I played about, I cut 4mm ply down the length 6 inches wide and stuck it onto screed spaning cracks using flexi grip gripfill stuff ( cant remember exact name at moment and cant be arsed to go to van ) then used level flex to bring screed height up to ply then screed all over again 3mm, my thinking was flexi glue under ply will move and level flex will move then layed knight tile its been 16 months now and still ok, but I may of just been lucky
not the heat thats the prob mate The two slabs are completely seperate to each other, he's laid one after the other one has cured etc So each has their own movement tolerances etc
If the tiler had known his stuff he could have used a uncoupling mat under the tiles that would have compensated for the movement between the slabs.
Smartfloor or Jumpax and float it, I prefer Smartfloor as its faster. http://www.youtube.com/watch?v=QsIF6ue3I8c
Would use a resin down the joint with maybe silver sand if its a large gap, then fix the mesh over the top with shonox APF or Balls flex , then coat either side with your normal latex,
i am likinge jumpax route Less hassle and tbh, cant see there ever benig a problem down the line due to the 2 areas moving etc Theres no skirts on yet anywhere so even better Just need to check either that or smart floor is fine for heat travel etc
You get all the best gigs man. Bet you don’t have to change grotty altro in sh1thole pubs out of hours!
We try not to do pubs if we can help it, gave that type of work up years ago, "should say fortunately i was able to give that type of work up " along side occupied housing work in large estates in and around Camden. mind you just pricing a pub in Bath in whiterock and vinyl in the bars without seeing it and its bound to be a sh1thole, so will be pricing accordingly
