16mm prowarm pipe popping out of procrate on bends

Hi All,

I’m installing an ufh system using procrate and 16mm ufh pipe. The procrate is laid on top of insulation but I’m finding that at each bend and return the pipe is either pulling out of the procrate or the procrate is lifing up. What am I doing wrong? This is the 3rd system I’ve installed but the first using the crate system and this size of pipe. I thought the whole point of the crate was to avoid having to use clips.

gaffa tape helps on the bends to hold the bend down

Haha, thanks. Guess it fits the criteria of ‘it moves and it shouldn’t’.