Love number 2!...haha haRe: Concrete floor with plywood around radiator pipes (mixed substrate
I'm with Andy. My own cynical view of the advice given is:
1. BAL obviously hedging their bets
2. Technical advice from Topps :lol:
3. Not particularly wrong
4. Well Schluter would say that
If the 10" x 4" pieces of ply are loose, take them out and fill the void with some rapid set.
Cheers lads. Yes - tiled now and looks great. Thanks again for the advice! I put on a few coats of primer. No problems so far but bought a couple of extra tiles as a precaution... 1200x600mm tiles were a bit of a handful in the end but look good.. Will report back if any cracks appear in case it helps anyone else looking back at this thread. So far so good.