On 04/02/2019 18:23,
www.GymRatZ.co.uk wrote:
On 04/02/2019 15:57, wrote:
Expanding foam is about the worse stuff one could use for floor tiles. If there's one thing such tiles must have it's rock solid support all over - far more solid than any foam could possibly give.
********. google 'flexible tile cement'
like a hard rubber when set
They do have a solid support. As much as any "over joist" construction
can give.
They're not floating on foam, they're spaced on the original adhesive
"ridges" with foam run between the gaps as created with the notched
adhesive trowel when initially laid. The so called "flexible" tile
adhesive I originally used has zero "flex" and the same amount on
non-adhesion not just to the floor but to the tile surface too.
I put the tiles down quite a few months ago now but have been holding
off grouting to make sure no more tiles are going to detatch themselves.
Once the the grout is squeezed into any gaps they'll be as solid as
they ever could be.
I don't envisage any problems the the re-attached tiles. Perhaps
hairline cracks /might/ appear in some of the grout lines but that
doesn't really worry me, they're all underfloor heated and the
underlying chipboard is waterproof/resistant anyway so all will be fine.
Using foam to re-adhere them was an act of desperation in preference to
scrapping the floor tiles which surpassed any expectations by a massive
amount. They're pretty much on a micro-thin layer of polyurethane
adhesive (foam without bubbles)which is proving to be an almost
molecular bond between surfaces not some ishy-squishy "foam" that moves
about.
may work, but I think you need 'thickness' and flexible thickness at that.
--
€śThose who can make you believe absurdities, can make you commit
atrocities.€ť
€• Voltaire, Questions sur les Miracles Ă* M. Claparede, Professeur de
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M. de Voltaire