Calculation of knee wall for 1 1/2 story house

Hello,
I actually have just a quick question.

What is the maximum height allowed for the knee wall (gable roof) if we have to stay within 1 1/2 full floors in S-H:
- ridge height 8m
- roof pitch 15-51 degrees
- the house should have about 130 sqm of living space
- normal ceiling height on the ground floor

The background of my question is that I want to try to minimize the sloped ceilings as much as possible. But I am not clear on how this is calculated.

Maybe you can help me briefly here.

Thank you and stay healthy.

Without reading the state building code of SH now, on average 3/4, 2/3 above 220 or 230 ceiling height are allowed (you can check that yourself) It is always a determination/mediation of knee wall and roof pitch. And of course, when setting the ridge height, the reference point and the structure of the house. Let your architect calculate! I would roughly recommend a 140/160 knee wall with a roof pitch around +-26 degrees or a 180 knee wall with a flatter roof pitch. There are houses that look like two stories but are still calculated as single-story. 1/2 stories do not exist. Through additions, bay windows, voids, the architect can cheat.

- Eaves height 8m
- Roof pitch 15-51 degrees
- The house should have approx. 130 sqm of living space
- normal ceiling height on the ground floor

That is a very large range of possible roof pitches. The ceiling height on the ground floor is not relevant for the full-storey calculation. The information is insufficient, the gable width is missing.

that I want to try to minimize the slopes as much as possible. But I am not clear about how the whole thing is calculated.

Pythagoras
However, you should be clear about what a knee wall height means for the view: namely a crossroads between facade and roof windows. In this sense, you have the knee wall height virtually "as a beam in your mind’s eye".

1/2 storeys do not exist.

1/2 storeys do not exist. 1/2 storeys do not exist. You can't say it often enough.

How high may the knee wall (gable roof) be at most

Is it still about the plot on Dorfstraße? That is a §34 area according to the Building Code, so there is no obligation to conform for roof pitches or shapes. And the full storey calculation also does not have to be done according to the strict definitions of the state building regulations.

There are no 1/2 stories.
There are no 1/2 stories.
You can't say it often enough.
Is this still about the property on Dorfstraße?
According to the Building Code §34 area, there is no requirement to match roof pitches or shapes. And the full story calculation does not have to be done according to the strict definitions of the State Building Code.

Hello Escroda,

I would like to invite you to browse my new thread. That probably explains a lot.

I just thought I could ask the question here in a generally valid way, since according to the search function I was not the only one who asked this question.

P.S. if there are no 1/2 stories, what do I call it then? Unfortunately, I did not know any other term so far. Attic story?

P.S. if there are no half floors, what do I call it then?

Mezzanine
42 would probably be the wrong answer, but still the question should perhaps be asked to Deep Thought sometime

Stepped floor?

- only if it is stepped.