ᐅ Exterior walls built with a deviation of approximately 4 cm from vertical alignment
Created on: 11 Mar 2017 20:51
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Sparstrumpf
Hello forum community,
we are currently quite unsettled regarding our construction. Our shell builder has constructed an exterior wall with a slope of about 4cm (1.6 inches) from bottom to top. According to the site manager, this should not affect the structural integrity, but now the plasterer has to compensate for this error at the shell builder's expense. Since we are not experts, our question is whether this is actually acceptable and how the plasterer would correct this issue. Obviously, it means applying more plaster, but does the plasterer need to use any additional materials or tools to compensate?
we are currently quite unsettled regarding our construction. Our shell builder has constructed an exterior wall with a slope of about 4cm (1.6 inches) from bottom to top. According to the site manager, this should not affect the structural integrity, but now the plasterer has to compensate for this error at the shell builder's expense. Since we are not experts, our question is whether this is actually acceptable and how the plasterer would correct this issue. Obviously, it means applying more plaster, but does the plasterer need to use any additional materials or tools to compensate?
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Sparstrumpf12 Mar 2017 08:43OK, it looks like we are facing a bigger problem then. The precast concrete slab has already been installed and poured. This is very disappointing, as the rest of the shell construction went well... Just this one troublesome wall. We will have to discuss this tomorrow.
Sparstrumpf schrieb:
According to the site manager, this should be structurally safe, but now the plasterer has to correct this mess at the expense of the shell builder. Which way is the exterior wall leaning? Any pictures?
Who will cover the costs for the exterior plaster and subsequent expenses—different anchors, screws, mounting rings for electricians, etc.? The DIN standard clearly specifies angle and dimensional tolerances; about 4 cm (1.6 inches) is several times beyond those limits!
Why didn’t your site manager notice this problem earlier?
Mycraft schrieb:
4cm (1.6 inches) is not just harmless, it is actually more than concerning!I see this as a double-edged issue: on one hand, the statement that it is structurally safe is not entirely wrong. The house will not collapse just because you continue building on it. However, this obviously does not apply with the same structural calculations; those would need to be redone!
And that is significantly more expensive than tearing down the wall and rebuilding it.
Sparstrumpf schrieb:
OK, it seems like we are facing a bigger problem then. The slim slab has already been installed and poured.Oh dear, how is the wall in question oriented relative to the slab’s span direction? ... however, I still don’t see more than a slim chance of avoiding demolition.
Sparstrumpf schrieb:
We need to initiate the conversation tomorrow then.I see the urgent necessity to immediately serve a written and provable notice of defects. How to properly phrase the demands within it, I would definitely not draft without a lawyer—specifically one specializing in construction defects, not family law.
What do you expect to accomplish in a “conversation”? Until then, you will remain a layperson and will be unable to properly assess what the contractor is telling you.
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tempic schrieb:
A load-bearing wall that already supports the ceiling,at least: a slanted wall under a ceiling that the structural engineer calculated as perfectly vertical. 4cm (1.6 inches) there is not just tolerance, but also VAT, holiday surcharge, and who knows what else Makrelen-Manni has added on...
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Are you structural engineers to be able to make statements about this?
For a wall height of 2.70m (8.9 feet), that is a deviation of about 1.5%. The inclination is 0.9°.
I do not want to downplay it. The shell builder will have to take responsibility for it. But it’s also important not to make a mountain out of a molehill.
The building expert, whom the original poster has surely hired for independent construction supervision, will be able to advise whether additional interior plaster could be an appropriate solution.
For a wall height of 2.70m (8.9 feet), that is a deviation of about 1.5%. The inclination is 0.9°.
I do not want to downplay it. The shell builder will have to take responsibility for it. But it’s also important not to make a mountain out of a molehill.
The building expert, whom the original poster has surely hired for independent construction supervision, will be able to advise whether additional interior plaster could be an appropriate solution.
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