Bauhaus concrete villa with core insulation - experiences

Also double shift Baudertec? Thought that’s not always done like that.

Also double layer Baudertec? I thought that’s not always done.

No, just a single layer.
All done by myself.

The top layer is always double. Or which one do you mean ?

Yes, the one before the final covering. Bauder itself specifies only one layer before the final covering. So it does not always seem to be double.

Hm I consider that normal and also urgently necessary, as the top layer represents the actual sealing level. Without greening, it is also the level exposed to the weather. I find the underlying layers rather somewhat exaggerated. In addition to the emergency seal, another sealing primer and a membrane between the insulation and the tapered insulation? For what purpose? Is the insulation perhaps sensitive to water, so that additional protection against underflow was desired? Especially since, as you already said, watertight concrete [WU Beton] was used. The problem is solely the penetrations. The roof itself will not let water through the surface for the next 100 years. Some also pour the parapet together with the slab in one step so that there is no joint that could become a problem. Two rules for flat roofs 1) never use wood 2) never use insulation wool.

Yes, the one before the final covering. Bauder itself specifies only one layer before the final covering. So it doesn't always seem to be double.

Normally, the structure is as follows: - Primer - Vapor barrier - Insulation - Cold self-adhesive membrane (here the KSA) - Bitumen welding membrane Why the KSA was applied twice by , no idea.