Kishihmen
2021-02-09 16:57:26
- #1
Hello everyone,
the ceiling above the ground floor has currently been concreted at our site. According to the payment plan, an interim payment of approximately €30,000 is due here.
However, our expert has discovered several defects. These were reported to the main contractor [GÜ] with a deadline. The first deadline (2 weeks) passed without the defects being fixed, the second deadline is still running until Thursday (also 2 weeks).
Currently, we have withheld about €17,000 of the €30,000. Our main contractor considers this far too much and insists on payment.
Since we currently fear insolvency of the main contractor (structural builder not paid, stone supplier not paid, steel supplier not paid, light well supplier not paid), we want to make the deduction as high as possible. However, since we are not construction experts and want to avoid a deduction that is too high for defects possibly backfiring, I hope there are experts here who can give us a rough estimate of the costs.
P.S. Lawyer contacted, but the appointment is only on 17.02 and I fear we cannot hold off the main contractor that long.
Defect 1:
At the transition between the basement and the ground floor, no base sealing of the first row of stones was considered.
The basement is already fully glued with Styrodur, and the excavation pit is backfilled.

Defect 2:
At some points of the shell construction, the minimum offset of the stones was not observed; at some places, up to 7 rows of stones were built one above the other.

Defect 3:
It is a terraced house. Mineral fiber boards were installed between the buildings for sound insulation. At one spot visible from outside, there is a gap between the boards of approx. 80cm deep and approx. 20cm high. After pointing out the defect, the structural builder "stuffed" mineral fiber boards into the hole. According to our lawyer, reliable sound separation cannot be guaranteed this way.
Defect 4:
The area where the terrace doors will later be located was poured with concrete. Here, the reinforcing steel protrudes from the wall. According to the expert: This results in an insufficient bond between reinforcing steel and concrete. It must be assumed that adequate corrosion protection of the reinforcing steel is not permanently ensured. Furthermore, with insufficient concrete cover of the reinforcing steel, adequate fire protection is not provided.
Defect 5:
In the area of the floor slab, the mineral fiber board was not secured. The result is that it runs quite wavy. This is particularly problematic in the stairwell area, as only about 10cm of concrete remains to the mineral fiber board in places. However, the stones for the partition walls have a thickness of 17.5cm.

Defect 6:
The mineral fiber boards were partially not laid tight enough, so that concrete has flowed between the boards and forms a sound bridge.

These are the (known to us) defects. I would be very pleased if someone could at least roughly assign prices to the defects.
Thank you very much in advance.


the ceiling above the ground floor has currently been concreted at our site. According to the payment plan, an interim payment of approximately €30,000 is due here.
However, our expert has discovered several defects. These were reported to the main contractor [GÜ] with a deadline. The first deadline (2 weeks) passed without the defects being fixed, the second deadline is still running until Thursday (also 2 weeks).
Currently, we have withheld about €17,000 of the €30,000. Our main contractor considers this far too much and insists on payment.
Since we currently fear insolvency of the main contractor (structural builder not paid, stone supplier not paid, steel supplier not paid, light well supplier not paid), we want to make the deduction as high as possible. However, since we are not construction experts and want to avoid a deduction that is too high for defects possibly backfiring, I hope there are experts here who can give us a rough estimate of the costs.
P.S. Lawyer contacted, but the appointment is only on 17.02 and I fear we cannot hold off the main contractor that long.
Defect 1:
At the transition between the basement and the ground floor, no base sealing of the first row of stones was considered.
The basement is already fully glued with Styrodur, and the excavation pit is backfilled.
Defect 2:
At some points of the shell construction, the minimum offset of the stones was not observed; at some places, up to 7 rows of stones were built one above the other.
Defect 3:
It is a terraced house. Mineral fiber boards were installed between the buildings for sound insulation. At one spot visible from outside, there is a gap between the boards of approx. 80cm deep and approx. 20cm high. After pointing out the defect, the structural builder "stuffed" mineral fiber boards into the hole. According to our lawyer, reliable sound separation cannot be guaranteed this way.
Defect 4:
The area where the terrace doors will later be located was poured with concrete. Here, the reinforcing steel protrudes from the wall. According to the expert: This results in an insufficient bond between reinforcing steel and concrete. It must be assumed that adequate corrosion protection of the reinforcing steel is not permanently ensured. Furthermore, with insufficient concrete cover of the reinforcing steel, adequate fire protection is not provided.
Defect 5:
In the area of the floor slab, the mineral fiber board was not secured. The result is that it runs quite wavy. This is particularly problematic in the stairwell area, as only about 10cm of concrete remains to the mineral fiber board in places. However, the stones for the partition walls have a thickness of 17.5cm.
Defect 6:
The mineral fiber boards were partially not laid tight enough, so that concrete has flowed between the boards and forms a sound bridge.
These are the (known to us) defects. I would be very pleased if someone could at least roughly assign prices to the defects.
Thank you very much in advance.