S
sw tiling
hi to all that can help me out, havnt been on here for a while so appreciate anyone that can.
last week tiled a bathroom floor, 60x60 galaxy (not granite the man made resin ones), left the job lookin perfect, it was flat as a pancake and level.
The subfloor was chipboard overlaid with 9mm wbp ply supplied by my plumber, it was screwd at 300mm centers and then inbetween each 300center was screwd down just incase, there was no movement at all to worry about.
I used bal apd primer, i used toppfix rapidset flexible as ive never ever had a problem with this adhesive on this substrate with these tiles, grout used was bal superflx wide joint.
went to the job the other day and grout was cracking and two tiles on the main walkthrough the bathroom were popping up and now moving too much, had a look under tile in threshold and the adhesive has bonded to the tile but has cracked and moved away from ply, immediate reaction was :mad2: as ive never had a problem and i know it states you can use this adhesive on ply overlay, i went straight to toppfix who say to me you cant use this adhesive on ply over chipboard as the chipboard under the ply has probably swelled with moisture etc. It states on the bag that it is suitable for ply overlay, if you go into any house you usually have to ply over chipboard or floorboards which is why stupidly ive assumed the adhesive is fine.
To cut a long story short i would normally board a floor with hardibacker but the ply was supplied by my plumber so i used it,
my question is how would you guys overcome this problem? would you take up the popping up tiles and ditra over the ply? or would you use bal fastlex as recommended by topps to solve the problem.
Has this issue ever happend to any of you when tiling over ply screwd into chipboard?
Thanks guys :mad2::mad2::mad2::mad2::mad2:
last week tiled a bathroom floor, 60x60 galaxy (not granite the man made resin ones), left the job lookin perfect, it was flat as a pancake and level.
The subfloor was chipboard overlaid with 9mm wbp ply supplied by my plumber, it was screwd at 300mm centers and then inbetween each 300center was screwd down just incase, there was no movement at all to worry about.
I used bal apd primer, i used toppfix rapidset flexible as ive never ever had a problem with this adhesive on this substrate with these tiles, grout used was bal superflx wide joint.
went to the job the other day and grout was cracking and two tiles on the main walkthrough the bathroom were popping up and now moving too much, had a look under tile in threshold and the adhesive has bonded to the tile but has cracked and moved away from ply, immediate reaction was :mad2: as ive never had a problem and i know it states you can use this adhesive on ply overlay, i went straight to toppfix who say to me you cant use this adhesive on ply over chipboard as the chipboard under the ply has probably swelled with moisture etc. It states on the bag that it is suitable for ply overlay, if you go into any house you usually have to ply over chipboard or floorboards which is why stupidly ive assumed the adhesive is fine.
To cut a long story short i would normally board a floor with hardibacker but the ply was supplied by my plumber so i used it,
my question is how would you guys overcome this problem? would you take up the popping up tiles and ditra over the ply? or would you use bal fastlex as recommended by topps to solve the problem.
Has this issue ever happend to any of you when tiling over ply screwd into chipboard?
Thanks guys :mad2::mad2::mad2::mad2::mad2: