ᐅ Nails through the waterproofing membrane in the basement

Created on: 2 Jun 2023 09:24
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darksun
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darksun
2 Jun 2023 09:24
Hello,
we are building a prefabricated house with a basement (concrete).
The basement floor (slab) has already been covered with a waterproofing membrane ("Alujet Floorjet"), which was also extended a bit up the walls and glued there.
The electrician then laid underground cables (electrical cables) on the floor and fastened them to the floor with cable clips and nails.
Is this acceptable?
At these points, the waterproofing membrane is basically slightly "pierced," and moisture could potentially travel up through the barrier via the nails...
Construction site: floor with laid black cables, green supports, bucket and toolbox
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darksun
3 Jun 2023 10:59
145 views, no ideas or comments...

Has this been resolved? If so, it can be closed.
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kbt09
3 Jun 2023 11:36
@darksun ... just 24 hours, and you probably didn’t want a half-hearted answer. And if the issue is resolved, it’s good forum practice to post the solution. That way, others can benefit from this thread as well.
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filosof
3 Jun 2023 12:15
Unfortunately, I’m only now getting around to replying. I’m still building a house on the side…

Since we are currently at the exact same stage, I was curious and checked our basement.
Result: the electrician used adhesive, the plumber used nails. See pictures.
I would also be interested in how this should be done correctly!
Insulated metal ducts and cables on construction site floor; green adhesive tapes visible

Insulated metal ventilation ducts and cables lying on a construction site.

Silver flexible metal cable/duct, bent, attached to a bracket on a dusty tile floor.
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filosof
3 Jun 2023 19:50
Perhaps @KlaRa might have a suggestion for us on how the correct execution should be? Thanks in advance.
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Allthewayup
3 Jun 2023 19:54
I agree as well; the waterproofing against rising damp will also be carried out at our place soon, and of course, empty conduits and other installations will be added on top of that.