We specialize in Amtico installations.
If your sub-floor is wooden generally 6mm WBP ply would have been laid prior to the Amtico
install. This may have blown if there aren't enough prenails holding it down or the ply is not WBP.
If your sub-floor is concrete latex should have been applied first. The sub-floor might not have been primed or the subfloor wasn't cleaned properly before latex? This could be the cause of the bubbles.
The Amtico might not have enough adhesive underneath the tiles, but i cant see this causing bubbles.
Certain adhesive cleaning products if overused causes the Amtico backing to melt. 'Amtico adhesive cleaner' if left to soak will seep through the edges and melt the backing. Crazy!!
Your best bet is to
1: With a paint stripper hot air gun set to low, warm one tile edge and remove gently heating the tile as you go. This way is really to stop a ply subfloor from delaminating.
2: With a stanley knife cut through the ply, or dig the latex with a screwdriver and check to see whats caused the bubble. (It might be a water leak?)
3: Continue to remove the Amtico tiles around the surrounding area well over/past the affected area to the nearest full tiles.
3: Cut out the ply or scrape the latex away and clean.
4: Prime floor prior to latex, apply latex sparingly with a screed trowel or paint scraper. Too little is required to fill the patch. Let dry and finsih with a top coat of feather latex. This will help achive a perfectly smooth and level finish.
If ply, cut out the ply with a straight edge and replace with new. Make sure there are plenty of ring shank nails holding it down. Again use feather latex the cover joints and hammer/nail heads.
5:Once the repairs are dry refit your new amtico tiles loosely cutting any cuts that need to be re-done.
6:glue out with Amtico Solvent Free Adhesive
or Amtico High Temperature Adhesive
(used in conservatories or underfloor heated areas) Ht adhesive should be laid into wet. SF ahesive should be allowed to dry for 10mins then Amtico applied.
I hope all the best for your repairs. I would like to plug this site for Amtico installation pictures
The site has some great images of installs, and supply Amtico
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