ᐅ Ideal Knee Wall Height for a Gable Roof

Created on: 14 Jul 2015 11:35
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Tommes78
Hello,
I’m not sure if this exists. The question is, what are your ideas? How high should a knee wall be at minimum? We are currently planning with a 1m (3.3 ft) knee wall and a 45-degree gable roof. Of course, I can raise it, but it’s always a matter of cost. How high should the knee wall be nowadays so that the rooms on the upper floor can be used effectively?

Thanks in advance for your tips.
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Sebastian79
14 Jul 2015 15:06
Now my imagination is completely failing me.

But I’m curious!

A bay window? How could you—especially that ugly protrusion that experts are always quick to criticize?
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Tommes78
14 Jul 2015 18:05
Thank you for the responses. Well, just two full floors probably won’t work cost-wise. But from what I understand here, it’s better to have a knee wall higher than 1 meter (3.3 feet). I’ll have to check how much raising it would cost. I’m thinking of a knee wall between 1.20 meters and 1.30 meters (4 feet and 4.3 feet).
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Legurit
14 Jul 2015 22:53
Attached are the screenshots – please excuse the graphical imperfections – and the brick color is of course not brown, or at least not that shade of brown.
It probably won’t win any architecture awards, but so far it actually looks surprisingly good from the outside.


Isometric view of a modern single-family house with dark roof and large glass windows


3D rendering of a two-story house with dark pitched roof, brown walls, many windows.
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Bauexperte
14 Jul 2015 23:40
Good evening,
BeHaElJa schrieb:
How do you come up with the idea that two floors are so much more expensive?
The original poster is not entirely wrong in their assumption!

The shell construction is an expensive matter – building from a 1.00 m (3.3 ft) knee wall to a structural height of 2.80 m (9.2 ft) requires a significant amount of materials and labor hours.

Best regards, Bauexperte
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Legurit
14 Jul 2015 23:59
I don’t disagree with that. But compared to adding an extra square meter of living space by increasing the building footprint, isn’t it still relatively affordable? For a 10 m (33 feet) long house where the knee wall is raised from 1 m (3.3 feet) to 2.8 m (9.2 feet), that would at least add 10 square meters (108 square feet) of living space. Are skylights possibly more expensive than regular windows? (I don’t know) – of course, this comparison isn’t perfect, since even the space under a sloped ceiling is fully usable and livable, for example if there’s a bed placed beneath it.
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Bauexperte
15 Jul 2015 00:08
BeHaElJa schrieb:

For a 10 m (33 ft) long house where the knee wall is raised from 1 m to 2.8 m (3 ft 3 in to 9 ft 2 in), that would add at least 10 sqm (108 sq ft) of living space.

But the floor area remains the same! Of course, it is easier to place cabinets and similar furniture against taller walls – but is that worth the extra cost? Only each individual can decide that for themselves; roof slopes also have their own charm.
BeHaElJa schrieb:

Are skylights generally more expensive than standard windows?

A good double casement window starts at approximately €1,000.00, with no upper limit.

Best regards, Bauexperte