ᐅ Building with Concrete vs. the 2016 Energy Saving Regulations
Created on: 14 Mar 2017 10:42
A
alegend
Hello everyone!
My issue is basically in the topic title...
We are currently planning a house on a slope with our architect and just received the first draft yesterday, which we really liked.
We had previously discussed that we would like to build with concrete – he wasn’t opposed to it.
Yesterday, we came back to this topic and he mentioned that the energy saving regulations here will be problematic.
He said that Liapor (expanded clay) will not be sufficient at 50cm (20 inches) thickness. Alternatives mentioned were sandwich panels or reinforced concrete with external polystyrene insulation.
Regarding polystyrene on the outside, the thing is that we actually wanted exposed concrete both outside and inside.
I am now looking for input or suggestions on how this could be done within a financially reasonable framework. Any experience, etc. The costs for the whole thing should be comparable to a "normal" quality brick with necessary work like painting, etc.
So, no exorbitant costs just to have concrete... I think it’s clear what I mean.
Do you possibly have any ideas? Maybe also pictures of alternatives and in general m
My issue is basically in the topic title...
We are currently planning a house on a slope with our architect and just received the first draft yesterday, which we really liked.
We had previously discussed that we would like to build with concrete – he wasn’t opposed to it.
Yesterday, we came back to this topic and he mentioned that the energy saving regulations here will be problematic.
He said that Liapor (expanded clay) will not be sufficient at 50cm (20 inches) thickness. Alternatives mentioned were sandwich panels or reinforced concrete with external polystyrene insulation.
Regarding polystyrene on the outside, the thing is that we actually wanted exposed concrete both outside and inside.
I am now looking for input or suggestions on how this could be done within a financially reasonable framework. Any experience, etc. The costs for the whole thing should be comparable to a "normal" quality brick with necessary work like painting, etc.
So, no exorbitant costs just to have concrete... I think it’s clear what I mean.
Do you possibly have any ideas? Maybe also pictures of alternatives and in general m
11ant schrieb:
That’s why I suggested either completely separating the structure and appearance; or applying the desired visual material as an outer cladding and only using an imitation look with a different structural material on the inside. This works quite well—so much so that the fake is only revealed by the surface being less cold to the touch. Is that really possible? Only by temperature? Whenever I see pictures of "concrete look" finishes, it feels off to me—because it usually looks completely fake. This would be an excellent alternative since I wouldn’t have the usual disadvantages of concrete (for example, later work on the masonry, etc.).
Regarding uploading plans—is that relevant for assessing the facade? I’m always hesitant to share something like that online—what exactly would be important here?
alegend schrieb:
Regarding uploading plans – is that relevant for evaluating the facade?The appropriate section for plans would be https://www.hausbau-forum.de/forums/Planung-ideenfindung-allgemeine-fragen.107/ – whether you want to upload something there is entirely up to you. It does help with discussing solutions if you have concrete visual references.
You cannot judge "the facade" in isolation: architecture is always a harmony of building volume, materials, and elevations. When homeowners don’t understand this, you end up with those cookie-cutter developments that scream “mass builder,” which unfortunately many new residential areas currently display. Built with “windows planned.” And if I understand correctly, you want a house that doesn’t give architects headaches when they see it. That requires a sensitive approach – a facade on its own does not exist in a vacuum.
alegend schrieb:
Is that really possible? Just through temperature? Whenever I see those "concrete look" pictures, I get uneasyI recommended that you consult someone knowledgeable – ideally a craftsman skilled in plastering, stucco work, and terrazzo production. If they also know painting, even better. With airbrushing, you can achieve near perfection. Don’t ask me which bacterial cultures create bubbles in plaster. There are even photo wallpapers mimicking various types of "concrete." But, as I said, the cold feel of a real concrete surface cannot be replicated, and that always reveals the “fake.”
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
So, here I am again... We’ve had two meetings with architects so far.
The fact is, building with solid concrete won’t be feasible, first due to energy regulations (we would likely need walls with about 60cm (24 inches) thickness using insulating concrete) — which leads to higher costs and difficulties finding specialists.
Therefore, our current decision is for concrete construction with external insulation and plaster.
What kind of insulation it will be — polystyrene or something natural — is still unclear. In general, I would be interested in opinions on whether there are any disadvantages compared to brick construction with external insulation.
Is there anything speaking against this approach? This way, we would at least have exposed concrete on the inside of the load-bearing walls, and not the entire building made of concrete as was mentioned before...
Opinions would be appreciated.
The fact is, building with solid concrete won’t be feasible, first due to energy regulations (we would likely need walls with about 60cm (24 inches) thickness using insulating concrete) — which leads to higher costs and difficulties finding specialists.
Therefore, our current decision is for concrete construction with external insulation and plaster.
What kind of insulation it will be — polystyrene or something natural — is still unclear. In general, I would be interested in opinions on whether there are any disadvantages compared to brick construction with external insulation.
Is there anything speaking against this approach? This way, we would at least have exposed concrete on the inside of the load-bearing walls, and not the entire building made of concrete as was mentioned before...
Opinions would be appreciated.
alegend schrieb:
So now we have basically decided on concrete with external insulation and plaster.[...] This way, at least on the inside, the load-bearing walls would have exposed concrete "Concrete-lookalike" surfaces are more difficult to achieve on the exterior. As a result, I assume the house will not be a concrete house on the outside (which also affects the architectural style that fits).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
@11ant
The exterior will definitely be plastered now – there’s no other option... :-(
The question remains whether concrete with external insulation is the best choice, and which type of insulation to use.
I know I haven’t shared the plans yet, but I prefer not to publish them here.
The exterior will definitely be plastered now – there’s no other option... :-(
The question remains whether concrete with external insulation is the best choice, and which type of insulation to use.
I know I haven’t shared the plans yet, but I prefer not to publish them here.
alegend schrieb:
The exterior will be plastered now, that’s decided – what else would there be … :-( Using insulation boards as "exposed masonry" isn’t really done (yet) – that would be pretty hardcore punk *LOL*
alegend schrieb:
The question whether concrete plus external insulation is optimal, and which insulation to choose, is now up for discussion I’ve already understood that. Thanks to the search function ("ETICS"), I don’t need to explain my opinion here again – it doesn’t depend on whether the backing "masonry" is a certain type of brick or concrete.
alegend schrieb:
I know I haven’t posted plans so far, but I’m reluctant to publish the plans here. Nobody knows better than you how much advice you can take – so you’re free to decline. How a building will appear is determined by the interaction of form and material. You can hardly clearly judge a wall surface alone as "looking good" or not. I’ll give you two examples: 1) Emphasizing the "wall panels" with windows fitted without reveals: looks "straight" in exposed concrete, but like the ’80s with plaster; 2) A shed roof combined with clinker brick: looks like wearing a plaid shirt with a tuxedo. That’s why I suggest showing the house "as a whole."
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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