General Contractor Construction Service Description

It's simply a replacement for shock ventilation (yes, with heat recovery).

..which is absolutely inefficient in winter. You let your heat out and have to reheat. Just don't dare to mention the word environmental protection there.
In my opinion, I assume homeowners don’t shock ventilate every room three times a day their whole life.

..which is absolutely inefficient in winter. You let your heat out and have to reheat. Just don't dare to mention the word environmental protection there. In my opinion, I assume homeowners don't air out every room three times daily their entire lives.

I will ask again precisely. He has to create a ventilation concept and comply with values. Furthermore, I know that the general contractor also deals with and researches building physics and heat pumps, among other things, together with the FHI.

I was just surprised by your choice of words, the general contractor said that with your construction method you don’t need a controlled residential ventilation system. That made me suspicious because the controlled residential ventilation system only has a limited connection to the construction method – nowadays everyone has to build at least according to the Energy Saving Ordinance anyway. And you don’t need a controlled residential ventilation system, you either want it or you don’t. And there are your own reasons for that. I wouldn’t let the general contractor tell me whether I want a ventilation system or not.

Otherwise, I find the argumentation hard to understand as well. I currently live in a rental house built in 1994, and the controlled residential ventilation system is for us the main reason to build new. In this house, I fight with nothing as often and as consistently as with the damn indoor air. Having to constantly fully ventilate everything by shock ventilation is disgusting. After 10 years here, we've tried everything. In the summer, it’s either stuffy or full of insects. In the bathroom, I have to shock ventilate for 10 minutes after showering (I don’t even want to start with bathing) EVERY single day, otherwise I can buy the anti-mold spray by subscription. In those 10 minutes, I either stand bored in the bedroom and scroll through a blue social network, or I get lazy and put the window on tilt, but then at the next corner friend mold is already waving hello again. It’s really enough to make you scream. I don’t even want to start on heating the air out the window.

I was just puzzled by your wording, the GU said that with your construction method you don’t need a controlled residential ventilation system.
That made me suspicious because controlled residential ventilation only has a limited connection to the construction method – nowadays everyone has to build at least according to the Energy Saving Ordinance anyway.
And you don’t need a controlled residential ventilation system, you either want one or you don’t. And you have your own reasons for that. I wouldn’t let the GU tell me whether I want a ventilation system or not.

Otherwise, I can hardly follow the argument either. I currently live in a rented house built in 1994, and the controlled residential ventilation system is the reason above all else for us to build new. I struggle in this house with nothing as often and as consistently as with the damn indoor air. Having to constantly ventilate everything completely by shock ventilation is a pain in the ass. After 10 years we have tried everything here. In summer it’s either stuffy or full of insects. In the bathroom after showering (don’t even get me started on bathing) I have to shock ventilate for 10 minutes EVERY single day, otherwise I can buy the anti-mold weapon on a subscription. During those 10 minutes I either stand bored in the bedroom scrolling through some blue social network, or I get lazy and set the window to tilt, but then mold buddy is already waiting around the next corner.
It’s really enough to make you scream. I don’t even want to start about heating money out the window.

As I said, the GU also deals exactly with these topics in theory and development. He says he builds in such a way that I don’t need controlled residential ventilation because enough air is exchanged in the house. But I will question that again exactly and let you know.

As mentioned, the general contractor also deals with these topics in theory and development. He says that he builds in such a way that I don't need a controlled residential ventilation system, as enough air is exchanged in the house. However, I will question him again and let you know.

Ask him exactly what he means by how the air is exchanged in the house. Without a ventilation system, normally only manual ventilation remains, unless I am overlooking something. I am curious how the general contractor meant that.

Unfortunately, I cannot send a private message.

Then you also cannot receive any yet :-(