ᐅ New construction with Poroton T7 MW 36.5 blocks without a mechanical ventilation system

Alex85 schrieb:

Whether mechanical ventilation with heat recovery is really necessary because otherwise the house would get moldy... no idea

It is necessary because new houses are simply too airtight, and hardly any occupant can keep up with the ventilation intervals. This does not mean, however, that mechanical ventilation makes manual airing unnecessary.

Regarding mold, the absence of mechanical ventilation is less of an issue compared to the moisture introduced during the installation of the cement screed (first week, before ventilation or heating is in use), which leads to a very high moisture level in the screed insulation.

Best regards, Bauexperte

Bauexperte schrieb:
because new houses are simply too airtight

And again, there is no such thing as "new houses." Besides that, your previous post was so unprofessional that a reply is really unnecessary. Hygiene is not about manufacturers, but about biology, accessibility, and materials. Where I might be short on space is none of your business, but I’ll just say: inside the house. That the appearance *in my opinion* suffers is not a statement open for debate, let alone something that can simply be disproved. And you surely know for yourself that there are both useful and harmful bacteria. So, what is the point of this condescending post?

Good evening,

Knallkörper schrieb:

And again, there are no such things as "the new houses."

I’m sure you already know that.

Knallkörper schrieb:

Besides, your previous post was so unobjective that replying would actually be pointless.

There are days when I can easily ignore smart alecks, and days when I can’t. Today is one of those days.

Knallkörper schrieb:

When it comes to hygiene, it’s not about the manufacturer, but about biology, accessibility, and materials.

Exactly... there are many differences among the chorus of manufacturers.

Knallkörper schrieb:

Where I would run out of space is none of your business, but I’ll say: inside the house.

Interesting interpretation by sender and receiver.

Knallkörper schrieb:

So, what’s the point of this low-effort post?

"but I prefer pollen from outdoor air over bacteria and fungal spores from controlled residential ventilation" – I felt like offering a lighthearted counterpoint to this statement (I can also make it [now] higher), my son is a biologist.

Edit: those who live in glass houses shouldn’t throw stones. I just moved your message to the "P" folder.

Regards, Bauexperte

Bauexperte schrieb:
my son is a biologist.

Regards, Bauexperte

OK Mom, but my older brother is.. oh, never mind

Knallkörper schrieb:
OK Mom, but my big brother is… oh, never mind

Now you've got it

Regards, Bauexperte

Our new build only has a decentralized mechanical ventilation system, but here’s an experience from last week: we were away for three days, and when we came back, the house smelled like a new car—well, a new house.

Before that, we lived in two well-insulated rental apartments, where after six hours the place smelled as if a mole had started rapid decomposition; well, not exactly, but definitely very musty.

Houses with today’s airtight construction really don’t “breathe”—and they shouldn’t. What does exist are moisture-regulating surfaces, like clay; however, that still doesn’t provide fresh air.