Hello everyone!
We are looking at a house that is somewhat too small and therefore an extension is desirable. The current facade is made of mexitegel. The question is whether this facade can be used as an internal wall in the extension. Since the question "why" will probably arise, I'll answer now: We really like brick walls indoors.
A follow-up question: How does the connection between an existing facade and an extension actually work, for example, a garage? Specifically, where the roof of the lower building connects to the facade of the higher building.