ᐅ Selection of Stone for a New Single-Family House Construction
Created on: 26 Jun 2025 06:28
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Holzi68
Good morning forum members,
I registered here because I am looking for some support with my construction project. I have already read a lot on this forum. Unfortunately, I am still undecided about the type of masonry to use for our new home.
We are building a 1.5-story bungalow with about 140 m² (1,500 sq ft) of living space. We have basically decided on a wall thickness of 36.5 cm (14 inches). We do not require any government efficiency subsidies such as KFW, but we are aiming for something close to an Energy-Efficient House 40 standard.
We will have a brine heat pump, and the piping for it is already installed.
We want to build monolithically, meaning no external thermal insulation composite system (ETICS / External Wall Insulation) if possible. Sound insulation is also very important to us, both from outside and inside.
We will do all the work ourselves and are confident in our ability to manage it.
There are so many types of masonry systems available these days. I had initially focused on Poroton blocks with insulation fill in 36.5 cm (14 inches) thickness and have already requested some quotes. These materials are quite expensive by now, but that’s the reality.
Now, I’m wondering if there are other options that might be a bit more affordable? Stone is not an option for various reasons.
Does anyone have experience, especially regarding sound insulation, that they could share?
So far, our planned construction approach has been as follows:
1. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, with interior walls made of calcium silicate blocks. There may be issues with material transitions here.
2. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, interior walls made of Poroton acoustic blocks filled accordingly... still under consideration.
3. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, interior walls made of drywall. Also still an option.
4. KLB autoclaved aerated concrete blocks seem very interesting, and I am trying to get a quote. I think they might offer even better sound insulation than Poroton.
5. Old school calcium silicate blocks would have been my favorite, but unfortunately, those require external insulation systems.
It feels like there are a thousand Poroton block manufacturers and all of them claim to be excellent, at least according to their websites. However, I haven’t really found any genuine sound insulation testing reports for these products yet. So, I do not know how the manufacturers arrive at any specific decibel ratings.
In summary, we want to build a masonry solution that offers the best combination of price, performance, and sound insulation. We are not yet finalized, although we are leaning toward Poroton.
If anyone has experience, positive or negative, please feel free to share it here.
Thank you in advance for your support.
Best regards
I registered here because I am looking for some support with my construction project. I have already read a lot on this forum. Unfortunately, I am still undecided about the type of masonry to use for our new home.
We are building a 1.5-story bungalow with about 140 m² (1,500 sq ft) of living space. We have basically decided on a wall thickness of 36.5 cm (14 inches). We do not require any government efficiency subsidies such as KFW, but we are aiming for something close to an Energy-Efficient House 40 standard.
We will have a brine heat pump, and the piping for it is already installed.
We want to build monolithically, meaning no external thermal insulation composite system (ETICS / External Wall Insulation) if possible. Sound insulation is also very important to us, both from outside and inside.
We will do all the work ourselves and are confident in our ability to manage it.
There are so many types of masonry systems available these days. I had initially focused on Poroton blocks with insulation fill in 36.5 cm (14 inches) thickness and have already requested some quotes. These materials are quite expensive by now, but that’s the reality.
Now, I’m wondering if there are other options that might be a bit more affordable? Stone is not an option for various reasons.
Does anyone have experience, especially regarding sound insulation, that they could share?
So far, our planned construction approach has been as follows:
1. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, with interior walls made of calcium silicate blocks. There may be issues with material transitions here.
2. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, interior walls made of Poroton acoustic blocks filled accordingly... still under consideration.
3. 36.5 cm (14 inches) Poroton block filled with EPS replacement or wood fiber, interior walls made of drywall. Also still an option.
4. KLB autoclaved aerated concrete blocks seem very interesting, and I am trying to get a quote. I think they might offer even better sound insulation than Poroton.
5. Old school calcium silicate blocks would have been my favorite, but unfortunately, those require external insulation systems.
It feels like there are a thousand Poroton block manufacturers and all of them claim to be excellent, at least according to their websites. However, I haven’t really found any genuine sound insulation testing reports for these products yet. So, I do not know how the manufacturers arrive at any specific decibel ratings.
In summary, we want to build a masonry solution that offers the best combination of price, performance, and sound insulation. We are not yet finalized, although we are leaning toward Poroton.
If anyone has experience, positive or negative, please feel free to share it here.
Thank you in advance for your support.
Best regards
Holzi68 schrieb:
No, actually we don’t want to avoid paying anything. How does someone come up with such absurd ideas? You seem to me like a somewhat strange character.
Of course, the architect has been commissioned for service phases 1-5 and will receive their payment. No one suggested cheating the architect out of their fee!
Holzi68 schrieb:
Oh yes, the so-called “Steinemantra” is completely useless and unnecessary to me. But that is just my opinion. Even individual opinions can help improve a product (if used constructively to explain or justify one’s dissatisfaction). I’m curious and thank you in advance!
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
T
Teimo19882 Jul 2025 08:22I can understand your problem. Have you already talked to local construction companies? I would consider ordering bricks, concrete, reinforcement, etc. through them as well. You’ll also need to borrow formwork materials, saws, and so on somewhere. I could imagine that ordering through construction companies might get you a better price than buying from building material suppliers. At least that was the case for us. And construction companies might also have practical, proven advice on choosing the right type of stone.
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