Hello.
I have just cast my bathroom floor with EPS concrete (about 7 cm) and had the tiler there today to go over how things should be done. We noticed a part of the old floor (joist and some floorboards from the old hallway where the new wall is standing) that is visible where the washing machine and dryer will be, which is at the finished floor height. He thought this was not ideal...
He recommended casting a "shelf/ridge" for these to stand on, embedding this small wooden construction (which is about 160 cm long and between 4 and 6 cm wide out from the finished wall) to get a solid floor. The area intended to be "lifted" is about 70 cm deep, 160 cm long, and should be about 10 cm high...

Now to my question...what concrete/product should I use for this?
The suggestion from the tiler was to raise this with EPS and then self-level on top, just like the rest of the floor (which will be leveled tomorrow or Friday), but I would like to cast this with a fast-drying concrete of some sort and then self-level on top.
The base where it will be cast is 7 cm EPS concrete (on which floor heating pipes are to be laid), with slab on the ground underneath.
There will be a few floor heating pipes underneath, so I would rather not raise this part with EPS, as it would lose the floor heating function.

Any tips or ideas???
 
So you're afraid of not getting warmth during TT and TM? Why?
 
Scared and scared... but it feels like a waste to put heating pipes there and then cast them in with EPS... which is insulating.
I know it doesn't really need to be heated there, but if water were to get there it would be good if it dried up... and TM and TT might not be there forever...
 
It would have been easier to understand with a picture, but why can't you tear out the boards and whatever else is there instead?
 
Will fix a picture of it tonight....
The beam and floorboards are there from the old hallway floor, and these remain to support the new wall... which is right behind it. So it sticks out 4-8 cm from that wall towards the bathroom, hence this section with the raised floor, and I'm planning to cast it tonight.
A small oversight on my part to leave this...
 
I don't think you need heat on that cast heel. And if you tear it down, you'll have the heat there later.
 
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