I'm still debating how to build the floor for our new bathroom of ~10 m2.
What I have to build the floor on are a "lighter" variant of 80 mm high H-shaped steel beams with a span of about 3100 mm and cc940 mm (the image illustrates their placement).
The building height I wish to maintain is about 150-170 mm from the top of the steel beams, which would make it approximately level with the adjacent room.
The goal is to achieve a floor construction that can support tiles.
You kind soul with the solution that allows me to let go of this issue will be rewarded
This resembles my problem but my slab has no steel beams, it's about 16-17cm thick, and I have 11-12cm to install underfloor heating for a kitchen.
I've considered laying cellplast, heating coils, and then leveling with self-leveling compound, but that requires quite a bit of self-leveling compound and it's not cheap. But I guess you need a slope so it's probably a must as the top layer anyway.
Interpreting your situation as having a slab on grade. In that case, EPS concrete and embedding heating pipes/-tubes might be sensible for you.
For my part, I have a basement underneath, so I'm hesitating whether I can make it sturdy enough to dare lay tiles, and whether the existing construction can handle possibly pouring on it. I don't want to have problems with cracking. As it is now, there's flex in the beams.
1. Weigh in floor joists 120x45 cc 30 on existing steel beams + chipboard + self-leveling compound (feels flimsy)
2. Cast EPS with reinforcement on existing beams and ceiling towards the basement + self-leveling compound (can the existing ceiling and beams handle this based on the picture)
No.. I also have a basement underneath me. I guess there are concrete slabs on the walls and then they have put up flooring on top. I have done a test drill.
But the question is, what do you do now?
Can you lay tiles on top of chipboard with grooves or should you pin down hoses and use self-leveling compound? Although it requires a lot of self-leveling compound.
I interpret your situation as you have a slab on grade. In that case, EPS concrete and floating in heating coils/pipes would be sensible for you?
For my part, I have a basement underneath, so I'm wavering whether I can make mine stiff enough to dare lay tiles, and if the existing construction can handle potentially pouring on it. I don't want to encounter problems with cracking. As it is now, there is deflection in the beams.
1. Level floor joists 120x45 cc 30 on existing steel beams + particle board + self-leveling compound (feels flimsy)
2. Pour EPS with reinforcement on existing beams and ceiling against the basement + self-leveling compound (can the existing ceiling and beams handle this according to the picture)
snipstah1 said: