ᐅ About Passive Houses, Plastic Bags, and Styrofoam Cladding

Created on: 26 Jan 2018 22:22
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Nordlys
Alex, if it turns out like that, thank God we built our house when we did. Living in a plastic bag with styrofoam insulation—terrible. The windows are probably screwed shut, and if the mechanical ventilation system fails, you suffocate. Your eyes constantly itch and everyone gets asthma because of the dry air.
No way. The EU? Seriously? Poland, Greece, and Slovakia are going along with this nonsense? I just can’t believe it. Karsten
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Tego12
27 Jan 2018 18:25
It’s just not the case...

Too dry air? Enthalpy heat exchangers solve that problem. For example, we maintain a constant 45% humidity. And I could still adjust it if I wanted to... (Although we don’t have external thermal insulation composite systems (ETICS) / external wall insulation, that doesn’t affect the indoor climate, since the same airtightness standards apply).

Damage to facades? You can have that on all facades. The idea that it occurs more often on ETICS is subjective. Fraunhofer claims the opposite, stating that aerated concrete facades experience more damage due to a significantly higher number of thermal bridges.

Regarding traffic, I completely agree with you! ETICS facades have an extremely good CO2 balance over their lifespan... From an ecological perspective, insulating properly definitely makes sense... That cannot be a reason against it.
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ruppsn
27 Jan 2018 18:44
@Tego12 I agree with you on all points! Out of curiosity: how do you manage moisture recovery with an enthalpy heat exchanger? By design, this only works with rotary heat exchangers by adjusting the rotation speed. Enthalpy heat exchangers use a membrane in the plate heat exchanger, where you cannot make any adjustments.
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DNL
27 Jan 2018 18:54
Nordlys, I invite you to my place. Well insulated without expanded polystyrene in the walls. Several allergy sufferers feel comfortable here.
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Tego12
27 Jan 2018 18:54
You are right. It solely depends on the amount of air I circulate through the system. I currently have the ventilation set fairly high; the humidity increases further when I reduce the output. But for me personally, this is now a pretty ideal value.
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Nordlys
27 Jan 2018 20:30
Like many others here, you seem to enjoy engaging with technology. I’m not like that. That’s why I’ve always been an Apple fan—they never required me to understand computers; you just have to be able to click icons, and it works.

It’s the same with opening and closing windows—anyone with a basic education understands that. Operating a system like this requires a certain interest.

Equipping a building with technology to the point that it only becomes habitable because of it cannot be the ultimate solution. But I think this is not just a clash of opinions, but of entire lifestyles. Karsten
11ant27 Jan 2018 20:33
ruppsn schrieb:
How do you manage moisture recovery with an enthalpy heat exchanger? By principle, that only works with rotary heat exchangers by varying the rotation speed. Enthalpy exchangers use a membrane in plate heat exchangers, where you cannot intervene.

I tend to agree with Nordlys here.

Humans are analog beings with analog lungs, and traditionally, they open windows manually with their hands to ventilate.

Houses aren’t built for other houses but for their occupants. And people have emotions that may resist the idea of having their indoor climate "digitally simulated," if I may say so. While the mind might rightly argue that chemically it’s perfectly equivalent—that also applies to astronaut food. For me, proper human living includes having the "quirk" of living analog.

And no, even if climate change exists, I am not responsible for it. And sticking transformed petrochemical waste all over the outside of my house is not the solution either.
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