Hello everyone,
for better moisture protection, the waterproof membrane will then be extended up along the exterior walls, similar to a basin.
When I mentioned this to the builder, they responded:
the waterproof membrane will NOT be extended up the exterior wall.
The installation complies with the requirements of the DIN standard.
How necessary is this? Should I insist on having the membrane extended up the wall?
for better moisture protection, the waterproof membrane will then be extended up along the exterior walls, similar to a basin.
When I mentioned this to the builder, they responded:
the waterproof membrane will NOT be extended up the exterior wall.
The installation complies with the requirements of the DIN standard.
How necessary is this? Should I insist on having the membrane extended up the wall?
Bookstar schrieb:
Do you have a watertight basement? If you mean a watertight basement floor slab and basement walls cast from in-situ concrete on site, sealed outside with a two-layer bituminous waterproofing including membrane, basically a black tank. We did it ourselves.
Baufie schrieb:
If you mean a waterproof concrete (WU) basement floor slab and the basement walls cast in-situ with a two-layer bituminous membrane including mesh applied on the outside for sealing, basically a "black tank" waterproofing system, we did that ourselves. I read somewhere that double waterproofing like the one you used is not only unnecessary but may actually be disadvantageous. I don’t remember the exact reasons, but Google helps!
Zaba12 schrieb:
I read somewhere that a double waterproofing layer like the one you applied is not only unnecessary but can actually be disadvantageous. I don’t quite remember why, but Google will help!Then please explain to me how I’m supposed to embed a mesh with only a single layer...Baufie schrieb:
Then please explain to me how I’m supposed to embed a mesh in plaster with only one layer...I think there has been a misunderstanding, or I may have misunderstood you. A properly executed waterproof concrete basement does not need additional waterproofing.I quote:
Tradespeople often turn a “white tank” into a “black tank” by applying bitumen to the exterior surface of the concrete basement. This method is based on the fairly common assumption that waterproof concrete is impermeable to water, but that small amounts of moisture can still penetrate into the interior through diffusion, pressure differences, or the supposed capillary suction of the material, causing moisture problems (such as mold) inside the basement.
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