ᐅ New Construction of a Two-Family House in Baden-Württemberg Using Neopor Formwork Blocks – Recommendations for Construction Companies?

Hello everyone,

Last year, we purchased an 800 m² (8,600 sq ft) plot near Stuttgart, which will be developed for us and my parents. I have created the plans, and they are currently with the draftsman to be finalized for the building permit / planning permission.

We plan to build using Neopor insulated concrete forms and are looking for companies to carry out the construction. So far, I haven’t found any suitable ones nearby. Perhaps someone has a recommendation. Reliable companies from other European countries are also welcome.

Thank you very much and best regards, AvH

I am attaching the current plans.

Kern-Haus builds with formwork blocks. In this system, the insulation is installed on the inside.
I looked up the block you mentioned and I only see disadvantages with it. Why do you want to use something like that?

Hello,

please feel free to correct me. Compared to aerated concrete, I found it quite innovative:

- better insulation
- better soundproofing
- higher compressive strength of concrete → structural engineering
- faster construction

but maybe I don’t fully understand everything yet (?)

I’m grateful for any professional advice.

Regards, Alex

alexisan schrieb:
I have created the plans, and they are currently with the draftsman to be finalized for the building permit / planning permission.

This is practically the royal road to ensuring that any flawed design is implemented exactly as planned. Draftsmen are not architects but merely their assistants (I assume the sorcerer’s apprentice is a familiar concept despite PISA tests).

At least here in the floor plan section, you should have your plans thoroughly reviewed and critiqued.

alexisan schrieb:
We are planning to build with Neopor formwork blocks and are looking for companies to carry out the construction. So far, I haven’t found any nearby.

This puts the cart before the horse—searching for a contractor based on the specific block. My mantra is: first, no building block is either the devil or the messiah; and second, truly innovative qualities are usually beyond the understanding of laypeople. Moreover, the experience of the builder significantly reduces critical issues and, in practice, outweighs even the greatest differences between technical datasheets of two blocks. In that sense, the worst thing that can happen is that a contractor agrees to try a block they are unfamiliar with for the very first time.

Formwork blocks are a great invention for self-builders and for projects on the scale of a garden wall.

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Hello,

I’ll try to stick to the topic. Let’s see if 11ant can do the same

- I’ll gladly share the plans with the floor plans. I’m sure that despite thorough research, some things won’t work. That’s what a forum like this is good for
- Can someone objectively explain why aerated concrete blocks are preferable to formwork blocks, for example?
- Or, what are the disadvantages of the ICF system?

Thank you and best regards, Alex

I have two questions about this system. I’m not trying to criticize it, I just want to understand it better.

- To properly distribute the concrete inside, a vibrating poker is needed. This process can be quite vigorous. Can the blocks withstand this? How do you prevent gravel pockets?
- If electrical outlets are to be installed on the exterior walls inside the room, how is this done? Is it enough to cut the insulation (e.g., expanded polystyrene) back to the concrete, or is that even allowed? Is the depth then sufficient, and how do you securely attach the outlet box?