Can anyone recommend a latex based or water base to go over old Marley tiles the asbestos ones has any one tried and had no probs I no level flex claim there's will and there was one done on the amtico course the other month think that was Schonox
Depends who it's for and why. The builders we work for screed over tiles all the time. I know it's not right but it happens. They use mostly laybond ultimate as it's cheap. I told them if they are going to screed over tiles and sheet they should at least use NA but they won't pay it.
Take em up douse the tiles with plenty o water and try and take them up in as big a pieces and you can
For verious reasons. Usually time constraints or money I've done this a few times. Never had any problems. And those floors were done a few years back. Used stopgap 300. Get the customer to sign a disclaimer though. Just make sure there solid.
I wouldn't screed over vinyl either ? Uplifting may take longer but its quicker & cheaper then having to replace the whole lot if it blows !
In the past iv always taken them up but after reading on the back of the level flex bag suitable over existing vinyl tiles and sheet just wondered if any one does this
I wouldn't go over vinyl. But the Marley tiles like I said have done a few times but made sure it's not what I'd reccomend and get the disclaimer.
If ur worried about that then stick with the levelflex. If there telling you it safe to Go on what your screening over. But why do you think the signed paperwork is worthless?
I've gone over vinyl tiles with green bag and 300 and got away with it. Both times was because they didn't want to remove asbestos tiles. Need to make sure they are aware its not the best way. Ive also had 70 m2 latex crack over vinyl tiles. Didn't blow but cracked big time
It's worthless because if it got to court the judge would completely disregard it, your the professional you know its wrong you don't do it simples. Bottom line is it ain't gonna do what it's there to do.
Going down the route of 'temporary floor covering' with no warranty on the invoice would be a better avenue to go down if your looking for a get out of jail card.
Or put down they could be asbestos and rather than have the expense of removing them, you are encapsulating them in latex, so can only prime and latex, and cannot offer your normal warranty as your governed by the strength of the old adhesive!
If the tiles are loose now, then it will fail, if they are well down and difficult to get up then you stand half a chance, You should really take it up but if you can't then Clean and prime the surface with a neat primer , I would use a latex mix, something like green bag,1200 pro or Na and put down a few mm , I wouldn't use 300. You really need a slow drying, not too hard a product with a little bit of flex, all the opposites of what we normally want, so an old type
I've seen it fail but it was because the vinyl tiles weren't stuck properly so when the screed dried it pulled them off the floor ! I was called to redo the job after the first guy did this ! At the end of the day a floor covering is only as good as what's underneath so why risk it ? Start from the bottom up not in the middle !
You are responsible to check what ever your bonding to is suitable. Just because the bag says you can, it does not mean they will guaranty the strength of the product your sticking to. In other words they are saying their product will stick to the tiles. The fact it might pull up the tiles is not their problem. and yes seen many floors fail. Fair few of my own when i 'risked it' instead of uplifting. Learnt from my mistakes over the years and would never do it any more.
