Do the costs increase with a higher knee wall?

Hello,

Hi Haustom,
it all depends on the roof pitch. Our construction company charged 600€ for each degree less of roof pitch. We chose the 32° roof pitch and have a knee wall of about 115cm.

For what reason did you have to pay for a reduction? After all, the provider saves material as well as working time and thus labor costs?

Best regards from the Rhineland

Hello,

I often ask myself the following question:
The costs for a house are often given in €/sqm, between 1000 and 2000€/sqm. How does that relate to the height of the knee wall? This is often 1m high.

More likely in the range of 0.50 m.

I think if I add 1.30m on top, then the sqm costs shouldn't increase that much, because the complete "fixtures", like floor, ceiling, windows, sockets, heating etc. remain the same, only the masonry increases by 1.30m all around.

The sqm costs per floor area don't change either, but the height of the creditable living space certainly does. Your provider will tell you what the sqm x running meter x height costs.

On the other hand, with 2.30m height on the first floor, you would gain considerable floor space.

Of course; the question must be whether a theoretical two-storey building is allowed on your plot.

Rhine regards

For what reason did you have to pay for a reduction?

We didn't have to pay anything because our house already had the 32° roof pitch in the standard equipment. But we possibly asked what it would cost and it was a bit too expensive for us.

After all, the provider saves material as well as labor time and thus labor costs?

Why does the provider save material? I rather think the opposite, higher walls are built in the attic and therefore actually more material is needed. Or am I misunderstanding something?

Best regards
Lilik

Hello,

Why does the provider save on material? I actually think the opposite, because higher walls are being built in the attic and therefore you actually need more material. Or am I misunderstanding something?

Maybe I'm missing something. But you wrote: "Our construction company charged 600€ for every degree less of roof pitch." If the roof pitch changes, the knee wall doesn't automatically change too, does it?!

Best regards from the Rhineland

Yes, correct. If we had chosen less roof pitch instead of 32°, for example 25°, it would have been €4200 more expensive. Do you think we would have had the same knee wall of 115cm with a 25° roof pitch?

Regards
Lilik

Hello,

Yes, that's right. If we had chosen less roof pitch instead of 32°, for example 25°, it would have been 4200€ more expensive. Do you think we would have had the same knee wall height of 115cm with a 25° roof pitch?

Yes, why not? Initially, the reduced roof pitch only lowers the ridge height and not the outer masonry on which the roof structure stands. Somehow I'm a bit confused ...

Rhenish greetings