ᐅ Floor plan of a flat-roof house on a slope

ypg schrieb:
4. About the "boring" view of the garden: you don’t build a house to watch TV (you can do that elsewhere). Among other things, you build a house to proudly look out over your own garden. Preferably from your favorite spot

Well, I’m certainly not representative, but we are definitely not building our house just to look at the garden... rather, to live in it, feel comfortable, and be able to sit in the garden or on the terrace. At least the latter is the case for the original poster, and if watching TV belongs to living/feeling comfortable there, he is doing everything right... except for the oil heating and the lack of a controlled ventilation system—in my opinion [emoji6]

5. When planning a family, you should consider that many women who want to get married may not necessarily want to move into a finished house that belongs to someone else.

Well, I am curious about the reasoning behind that [emoji4]

If they like it and it suits their own needs? Just on principle? Then that’s probably not the kind of bride the man is looking for [emoji6]

Is it just me, or are you a bit annoyed? [emoji6]

al3x_ schrieb:

Are there any advantages of a pitched roof compared to a flat roof? I don’t know any.

I’m not sure, but I could imagine that a pitched roof might be cheaper to build. Personally, I just find flat roofs more attractive and practical because you get full ceiling height. However, I have had to live in a pitched roof upper floor for 16 years, so I understand your points very well.

I don’t simply believe the ventilation problem. Just because some “experts” claim it?

That’s more about building physics than just a claim. But you can also build without ventilation; whether it makes sense for your own situation is something everyone has to decide individually.

I would always include it because a) I would be too lazy to go around the house every few hours to ventilate, and for professional reasons, I couldn’t guarantee it anyway. Also, modern new builds are significantly more airtight and often can no longer ensure the minimum air exchange through infiltration—that is a fact. Assessing how relevant this is for oneself is another matter...

al3x_ schrieb:
What requirements do I have to meet with an oil heating system? I’m planning a wood-burning stove in the living room. Do I also need solar, photovoltaics, or both?

You need a renewable energy component for heating or hot water supply. You could possibly integrate your stove into the hot water system, which should be allowed. Otherwise, solar thermal is the classic option, but it is not cost-effective and takes up space that could be used for photovoltaics. Photovoltaics only count if you use the electricity directly for hot water heating with an electric heating rod (immersion heater). That is also uneconomical. Your energy consultant should be able to provide more detailed advice.

al3x_ schrieb:
- Gas? Not available

For completeness, that is also possible with a tank. If you have a lot of earthworks planned anyway, it might be something to consider.

al3x_ schrieb:
The architect simply marked the 3x1500L tanks. Nowadays, there are modular tanks that can be combined as needed, without a bund. How many I actually install will be seen later. They are relatively inexpensive, and the price naturally decreases significantly with the quantity.

At the required volume, the cost is not very high. Whether you fill 1000L per year for 600€ or 500€ doesn’t make much difference … it will take a long time to pay off the tanks and the space they occupy for the 100€ difference.

al3x_ schrieb:
When I sit on the sofa, I watch TV or something else, but not the terrace. Nothing particularly exciting happens out there

You can tell you are planning as a single person. Sitting on the sofa, doing your own thing, and at the same time keeping an eye on the kids outdoors offers added value.

ypg schrieb:
5. When planning for a family, consider that many women intending to marry wouldn’t necessarily want to move into a finished house owned by someone else.

I agree with that. The shared urge to settle down. Usually one person ends up moving in with the other. But what can you do? Land is available, money is there, motivation for the project exists … maybe there are women attracted by a place like this. A topic for social research.

al3x_ schrieb:
If I wouldn’t “put up with” it or find it comfortable, would I then plan it that way? I don’t fully understand.
Are there any advantages of a pitched roof over a flat roof? I don’t know any.
I simply don’t believe the ventilation problem. Just because some “experts” say so?
I won’t comment on point 5.

There is at least no significant advantage of a flat roof compared to a pitched roof.

It is not uncommon that you share your ideas with the architect, but the design does not reflect them. Since the architect created something impressive, people often accept it. Architects charge fees, so they must know what they’re doing.
As the client, you quickly forget that you actually had very different ideas about your house.

This design, in any case, is not exactly the “cozy version” of a single-family home as you apparently imagined it.

Therefore, my question is justified in being directed at you.

Regarding mechanical ventilation with heat recovery: the building envelope is airtight. Rooms need to be ventilated; otherwise, they will smell stale. There are no “expert opinions” about this—it is a fact. I have deliberately avoided mentioning mold and will not address that issue here either.

I get the impression that you don’t want to read any criticism or comments.

ypg schrieb:
There is at least no significant advantage of a flat roof compared to a pitched roof.

Hello Yvonne, don’t you think that with the same number of floors, the loss of usable wall space due to sloping ceilings can be seen as a limitation and a potential disadvantage? Or are you primarily referring to those shallow pitched roofs with 13 to 25 degrees incline and a knee wall height of 2.20 m (7 ft 3 in)?

I have the feeling that you don’t want to read any criticism or comments.

Understandable feeling...

Of course, flat roofs have advantages. A recessed upper floor, use as a terrace, quiet, cool, and simple in construction. Wood-free means no rot. Storm damage is not an issue. As long as it is kept watertight, I would also consider it more durable.
And the appearance is a matter of personal taste.