Experience with Styrofoam stones

Maybe Willi Wacker can enlighten us regarding the following points:

So papi10, first google Lego construction methods, form an opinion, then assess risks and decide.

I doubt that, his post already contains too many errors... that shows complete ignorance. But as a house salesman... surely one can rely on the mentioned company, such things are gladly pushed onto customers. Surely he also knows nothing about the gravel nests at the wall bases and what they tend to cause with this system. The system is ultimately nothing more than a homemade concrete slab construction... just in a different form. That’s at least my personal opinion on such building systems... regardless of the respective sales company’s name. It also gets very funny in a pleasant apartment fire... Styrofoam is supposed to be very nice then... So that a layman can maybe see how this often turns out... (not a fire, rather the construction..) here is a photo album of a builder... of which there are unfortunately many gallery.alptraumbau.de in the album: BAU you will quickly find what you are looking for. If you have seen the course of events, hopefully the matter will be settled for Papi 10. And if not, then it shall be so....

The history of Styrofoam blocks...

...is a story full of prejudices and misunderstandings...

In the above posts, what I have already mentioned proves true once again: Usually, the loudest critic of this construction method is someone who wants to sell something else.

The great thing is: EVERYONE has an opinion on it and is generally not willing to let facts influence it.

Often it is not known,

that polystyrene rigid foam is vapor permeable, so no vapor barrier is required, as with prefabricated houses.

that the dew point lies in the ideal area, namely in the outer third of the wall, where any (theoretical) condensation could easily dry out if it occurred.

that these are systems approved by the building authorities, which have undergone strict testing before being approved.

that heavy objects (e.g. wall cabinets) are not attached to the Styrofoam, but to the concrete (using longer screws).

that the material used is flame retardant and self-extinguishing, thus not comparable to the Styrofoam from food packaging.

that in the event of a residential fire the internal insulation, which is still protected by the interior plaster, does not come into contact with fire at all, but the furniture burns first.

that the fire and smoldering gases from furniture, fabrics, felt, cork, and other materials used in the house are much more dangerous than the gases released when Styrofoam melts.

What is the difference in producing a concrete wall using wooden or steel formwork? There are no voids there either if done correctly.

The manufacturers of polystyrene rigid foam granulate (e.g. BASF, Shell) will gladly provide interested parties with extensive information. But you have to want it.

In this sense, yours Willi.
By the way, NOT a house salesman, but someone who has built himself and has informed himself extensively.

I have had very positive experiences with Styrofoam blocks. Especially the heating costs have significantly decreased in winter. Since the Styrofoam blocks also insulate the interior, only the living area needs to be heated, and not the walls additionally.

Especially the heating costs have decreased significantly in winter.

Oh really.. yes compared to what?

Heating costs

Oh come on.. yeah compared to what then?

Probably compared to before. What else.

News from the construction site!

+++ latest report +++
Master mason M. from W. has built a crooked sand-lime brick wall. Who is to blame? Of course the sand-lime brick.