Andehh

Anti crack mat for sure! We installed one, and still see a few cracks in the grout which need redoing, but touch wood no other issues. Similar sqm to you, laid in 75mm ish sand and cement.

Ain't water a bitch... Who needs it!!! You wouldn't have this issue with gin! 🍸

On the brightside , playing with concrete is always good fun! So you did that!!!

Ah mate

How often do you get flooded? During those circumstances I'd imagine you're gunna have bigger worries to work through!!!

How much insulation have you got below the UFH? And in the house in general? Tog slow the heat transfer , but don't stop it. Providing you have a good amount of insulation below you might not need to be too over zealous with the underlay, if there is a risk of compromising actual usability. (Ironic as we spent a couple grand on low tog carpet underlay, likely with a ROI beyond my own life span... But hey ho... )

Very satisfying!

Are you able to dish it/level it to push water away from the wall??

That gap between the block and historical stone work has got to be a major weak point to focus attention in?

Bitumen down first, concrete over the top, bitumen on top? Double layers of water resistance?

And yes, we had a fused spur fitted, we installed it near the light switch, but would possibly install it nearer the window next time? It is switched, so it does mean when we are away we can just disable each of the blinds to keep them perm open/closed, so that is a very small benefit? Kitchen we have 4 switches in place of a 4 way fused spur as we couldn't find a fused spur at the time , so the 'temp' solution remains...

https://theblindcompanyuk.co.uk/ Brilliant company to work with, really helped us out,

This is ours 2 years later, grubby because of the trees above it but otherwise doing the job fine! Johnston storm shield render or something...

When all is said and done, we need to draw straws for who will sneak round once a month and pour water down your walls, just to keep the story going..... this thread is becoming increasingly captivating for me now!! 😁

😃