Bungalow made of aerated concrete - experiences? DIY beginner questions!

Where did I overlook this info?

It has to go in the direction of spanning 7m and 120sqm. But that was just a simple rule of three from me.

90cm? I've now seen some halls that manage with 16/32 at a 7-9 meter span, with a distance of 3m... of course, the insulation and the greening are missing there, but with reduced spacing?

Did you want to build a roof with KFW 55 or a hall? Also, the flatter the roof, the thicker the beams have to be.

And there are many constructive variants. On or between insulation, etc.

And with me, the head remains visible at 90/18 (because a lot happens between the rafters), so it’s worth it.

Did you want to build a roof with KfW 55 or a hall? Also, the flatter the roof, the thicker the beams have to be

I simply oriented myself on the halls, they are also flat and have to withstand wind and snow loads. So far, I have assumed that the insulation in the roof will not be that heavy ...

And there are many constructive variants. On or between insulation, etc.

And with my head, 90/18 remains sufficiently visible (because a lot happens between the rafters), so it is worth it.

That already sounds pretty good, for example, and is certainly worth considering

That would be a rough idea, but the bathroom still needs some adjustments ...

That looks like a prison with the small cells and a very narrow corridor. And where is the utility room / [Technikraum]? Alone that would have to be at least the size of the bathroom for equipment and some storage shelves.

A floor plan with measurements would be helpful

That would be a rough idea,

Yes, definitely not tender-melting. It looks like a conversion of five row garages.