ᐅ Forgot to install perimeter insulation

jeti79 schrieb:
Fortunately, the ceiling is now 7 weeks delayed – so the construction company might add even more delay.

So, does that mean only the basement walls are standing so far? In that case, demolition wouldn't be too disastrous. However, I would sooner consult a construction lawyer than a building expert here, as I would consider changing the contractor immediately (who knows what else they might forget).

The tough question is how many rounds of financing you can manage for a construction site. In that context, laying insulation boards over the floor slab could be the lesser evil (assuming it’s truly just thermal insulation and not also moisture protection that’s missing). In my opinion, an adjustment in height before placing the basement ceiling makes sense. The building permit / planning permission would likely need to be updated to match the new construction; I have no idea about the potential implications for KfW funding.

That said, I can also agree with the viewpoint

tomtom79 schrieb:
To be honest, the insulation isn’t necessary

to some extent: cold floors are something only girls worry about, and basements are for boys.

---

https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

Isn’t there some confusion here? How can insulation on any floor slab compensate for missing insulation beneath the foundation slab? Also, the building doesn’t have a basement.

What is the current status of the construction? Is it still possible to increase the height of the ground floor walls?

You can also install the insulation “downwards” by placing an insulation layer between the slab and the screed.

However, I would completely disregard Tomtom’s comment. The thermal insulation certificate is a mandatory part of the building permit / planning permission. Dismissing it like that is, in my opinion, very risky.

Oh alex85

But that doesn’t mean it’s absolutely necessary. You have to consider everything and decide if it’s worth it for you.

Functionally, with a modern house built to the current energy-saving regulations, you don’t need to insulate under the floor slab.
Before it turns into a huge argument and you end up losing, take the money they are offering you.

Furthermore: Do not dismiss this outright. It is very general; the overall concept is what matters. If the foundation slab was designed with insulation, there is a reason for it. Omitting it is possible, yes, but it will result in measures being required elsewhere.

Am I writing in Turkish or what? What do you mean by "looking at the whole picture"?
Just provide a solution if you know a much better one, but don’t say it’s not possible.

Have a nice evening, I’d rather watch a movie.