ᐅ Lateral waterproofing of the foundation slab

Created on: 26 Apr 2021 15:37
N
neo-sciliar
Hello everyone,

I want to waterproof the foundation slab myself on the side and, due to material availability, order it early.
The house manufacturer finishes the house on the slab with an aluminum Z-profile that extends 10cm (4 inches) beyond the slab. The prefabricated walls rest on swelling mortar and are waterproofed downward against the slab to prevent water, pests, etc.

Insulation of 6cm (2.4 inches) with thermal conductivity class 40 still needs to be installed. This should be sealed upward toward the aluminum Z-profile using compressible sealing tape. First question: For the insulation, should I use EPS, XPS, or something else entirely?

The site manager said there should be a waterproofing layer between the insulation and the slab (though many omit this). Would you waterproof here, and if so, how?

Regards,
sciliar
N
neo-sciliar
7 May 2021 15:05
Do you know of any EPS insulation boards on which I can directly attach slate tiles?
J
Jann St
7 May 2021 18:42
No, sorry, cladding of that kind is not my area of expertise. I believe EPS and XPS are less suitable for the direct installation of any items.