ᐅ Modernist Concrete Villa with Cavity Wall Insulation – Experiences

Created on: 11 Sep 2018 07:32
R
rick2018
Hello everyone,

I just wanted to briefly introduce myself and say thank you.

For about a year and a half, I have been a silent reader here to gather inspiration and especially to gain more knowledge about construction technology.

Now a bit about me:
After more than a year of searching for a plot of land, I was able to purchase one from a developer who couldn’t move forward quickly with his plans.
So we found our dream plot (good location, 2500 m² (0.62 acres), slight slope, underground private spring that we have to preserve and are allowed to use).
There was an old house on the property, which we have since demolished.
There is no zoning plan, so §34 applies. During an initial informal inquiry at the building authority, almost everything we planned was rejected.
So we submitted an official preliminary building inquiry, involved the right people, and had lengthy discussions. In the end, we received a positive decision.
Therefore, there is nothing standing in the way of the building permit. The building permit should be granted within the next few weeks as there are no changes from the preliminary inquiry.

My wife (37) and I (36) want to build a Bauhaus-style villa in southern Baden-Württemberg.
It will be constructed from concrete (with core insulation) or in combination with insulated precast elements.
A lot of glass (full-glass system), textile shading, KNX, fast network both wired and wireless, strong mechanical ventilation with additional cooling coils, stainless steel pool, large cistern, and more.
The electrical planning must be 100% spot on since it’s almost impossible to make changes afterward.
Since I am friends with an architect from a larger firm, it was clear which route we would take. Such a house can basically only be realized with an architect.
I also personally know the electrician and KNX system integrator, as well as the owners and work approach of the heating, plumbing, and ventilation companies involved.
Some trades have already been contracted, and part of the equipment has already been ordered.

I’m really looking forward to getting started and to the final result. The goal is to move in by the end of 2019.

Once again, many thanks for the information I have received from you so far.
If you have any questions, just let me know.

Attached is the design, though not the final version. There have been a few minor changes.

Greetings from Swabia

Modern villa with flat roofs, terraces, glass surfaces, green surroundings – several views.
OWLer9 Jul 2020 16:30
rick2018 schrieb:

- Kitchen will be a Next 125 with ceramic

Ah, very nice! Even though Schüller kitchens are not manufactured in our area like most other German kitchens, we always ended up choosing Schüller as well. Unfortunately, the Next series has become difficult for us budget-wise, so we are sticking to the "budget range." But the lava black finish really caught our attention. The Next series offers some very interesting solutions, although they tend to work best in larger rooms or kitchens.

May I ask which design direction you are going for?
M
Müllerin
9 Jul 2020 17:04
Alright @OWLer, we stayed local with Häcker, no matter what...

About the birds again: I know the bird decals don’t really help, I wasn’t referring to those. There are many options, but I assume they’re probably not suitable for you since, of course, they affect the view from inside. Maybe the birds will be lucky and it won’t be as bad for you.

I’ll take one pool then, please... although... I don’t think it fits in our garden lengthwise.
G
guckuck2
9 Jul 2020 18:07
This is not a pool but naturally a duck pond, which can also be repurposed as a birdbath. Still water works wonders for headaches.
Basically as a compensatory measure.
A
apokolok
9 Jul 2020 23:13
rick2018 schrieb:

- Solid concrete. Thick enough that no insulation is needed.

I entered this as a fun exercise in ubakus.
Plain concrete conducts heat very effectively to the outside, and any steel reinforcement makes it even worse.
To reach the minimum required 0.24 W/m²K, you would need a concrete wall an astonishing 10 meters (33 feet) thick.
However, the summer heat protection would then be outstanding.
L
Lumpi_LE
10 Jul 2020 06:28
apokolok schrieb:

To meet the minimum required 0.24 W/m²K, you would need an astonishing 10 m thick concrete walls.
However, this is only feasible in theory. In practice, you end up heating the walls throughout the first four months of winter until a similar condition to the standard 0.24 W/m²K wall is achieved.
G
guckuck2
10 Jul 2020 07:17
At 10 meters (33 feet), the wall is made accessible via an intermediate corridor, where a fire is lit. This way, you essentially live inside an oven.