Statics - house with basement due to insulation, shifting Poroton bricks

Site managers and construction supervisors said that it can be done.

It can be… you can often do many things… whether it is right is on the next page that has not yet been written. What does the structural engineer say?

We neither know your house design in general, nor, and especially not, the plinth details.

Just a normal house, nothing special. What kind of plinth details do you want to know?

Maybe it is best if I just stick to 6cm as originally planned. Then increase the insulation from WLG 035 to 028 and that's that.

Hello,

please keep in mind when "simply moving walls" that the prefabricated ceiling slabs already ordered will definitely have too little bearing surface on the wall. Statistically, 5cm is usually necessary here. The prefabricated parts themselves can also already be undersized, so a much bigger problem can arise very quickly.

Completely normal house, nothing special.

"Completely normal" unfortunately means today that planners do not think in stone dimensions anyway and cause botched work here and there, so that a change does not make anything more broken.

What kind of base details do you want to know?

The complete base detail from the construction plan, even if it does not have the same quality as a detail plan from the architect without quotation marks. So the complete "zoom" into the junction of walls at the bottom and top, ceiling and ceiling support, ground surface level, perimeter insulation, base, splash protection strip, and so on.

Please consider when "simply moving walls" that the prefabricated ceiling slabs already ordered will definitely have too little bearing surface on the wall. Statistically necessary here are usually 5cm. The prefabricated parts themselves can also already be undersized, so a much bigger problem can arise very quickly.

You can see something like this here: ALL other "change-participating" elements that need adjustment.

Maybe it is best if I just stick to 6cm as planned. Then increase the insulation from WLG 035 to 028 and that’s it.

That sounds at least like the path with the fewest complications.

Maybe I should include such questions in my consulting product portfolio, I’m just missing a name for it ...

Maybe I should include such questions in my consulting products portfolio, I’m just missing a name for it ...

I suggest "the house of cards effect." You quickly push a little wall and everything above collapses o_O

Hello, please keep in mind with "simply moving walls" that the prefabricated ceiling slabs already ordered will definitely have too little bearing surface on the wall. Statistically, usually 5cm are necessary here. The prefabricated elements themselves can also already be undersized, so a much bigger problem can very quickly arise.

I have to negate that. The concrete filigree ceilings do not necessarily always rest "5cm" everywhere. On my shell construction, I had exactly such a ceiling element that did not touch the wall underneath. I sent a photo of it to my expert, and he promptly replied that there are constructive measures for this case to ensure load transfer to the "just missed" wall. Check out the Bauwiki under "Element ceilings - application rule." There is a great picture there that explains this very well. btw: Our 36.5 cm bricks rest 12 cm on the underlying XPS insulation. Whether in the case of the OP it "just works" to increase from 6 to 8 cm can only be answered by the structural engineer of this construction project. And if he agrees and the general contractor can still adjust all trades, a plan must be submitted to the building authority and implemented as soon as possible.