ᐅ An above-ground basement?

Created on: 26 Jun 2017 13:56
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bindig
Hello everyone,

So far, I have only been reading along in the forum and found a lot of interesting information.

Now I am planning to build a single-family house.

I am surprised that there is so little information about concrete in private construction, even though in real life I have already seen several architect-designed houses made of exposed concrete. I don’t want or am allowed to build something that extreme, but I am interested in whether the cost-effective construction method of a basement can also be used above ground for living spaces. Manufacturers of prefabricated basements advertise how versatile their products are. But is it really possible to build something other than a basement this way?

Does anyone have experience with KFW-55 compliant concrete walls for the ground floor of a single-family house (essentially an above-ground living basement)? Does this work in practice?

Thanks in advance for all your answers!

p.s.

Please, let’s not discuss breathable versus non-breathable walls in this thread. Thank you.

Also, I am aware that installing electrical wiring inside concrete walls is quite complicated. However, this can largely be avoided through design by placing installations, light switches, etc., in drywall interior walls. Theoretically.
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Alex85
5 Jul 2017 06:16
Since we are talking about misconceptions, do not equate ETICS with Styrofoam. There is a range of other insulation materials that may be more appealing.
11ant5 Jul 2017 15:01
Alex85 schrieb:
Since we are talking about misconceptions, EIFS should not be equated with Styrofoam.

You are right.
Alex85 schrieb:
There is a range of other insulation materials that might be more appealing.

In the construction method "building material shell + insulation shell," typically both layers also support the plaster on their respective sides, which is why rigid foam board insulation is preferred. When installed between structural timber, however, fibrous mat-type insulation materials are more common. Additionally, loose-fill insulation is often used as blown-in insulation where, mostly in buildings from the 1980s designed with air gaps, cavities between masonry shells existed or still exist. For concrete walls, loose-fill insulation is rarely applied on the interior; here, mats or boards are the standard.

For completeness, it should be noted that there are also building materials for (single- or double-shell) masonry walls with insulation-filled hollow cores, as well as stone-based products with integrated insulating foam layers.
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