ᐅ Vapor-tight connection between the exterior wall and the foundation slab

Created on: 4 Feb 2024 18:35
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parallelsym
Hello everyone,

According to our building expert, the vapor-tight connection to the concrete slab is not properly done.

Our site manager has made some adjustments but not all areas are fixed yet.

The screed will be installed soon. How important is a completely vapor-tight connection, and do I need to insist on a full seal at this point?

Could problems arise in a few years, or is it like a small hole in the vapor barrier that doesn’t cause much damage?


Underfloor heating: Pipes on insulation mat; damaged wall thermostat box.
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Stephan—
5 Feb 2024 06:48
PS: It would have looked cleaner and nicer to install the door frame after plastering the wall, but that is already a minor detail.
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parallelsym
5 Feb 2024 07:00
This is about the membrane in the wall. Ideally, the membrane should extend down to the foundation slab.
In our case, the membrane is folded underneath, so the wall is completely enclosed by the membrane.

However, there are apparently a few scratches in some places from the installation of the brackets/anchors used to secure the walls.
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jens.knoedel
5 Feb 2024 08:06
parallelsym schrieb:

It’s about the membrane in the wall.
What kind of membrane in the wall? What is the wall structure? Prefabricated house?
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Stephan—
5 Feb 2024 08:23
Vapor barrier film after the first course of bricks?!
A wall construction detail or (schematic) drawing would be really helpful.