The other day a company came here to dig in order to install "open fiber" to our house. The house is a 1 1/2 story villa with a "slab on grade" built around 1990.
Under the electrical cabinet on the outside, a trench was apparently dug to reach the conduit from old telephone cables and then the trench continued along the house foundation to where the fiber will later come in.
After the job was done, I saw that some material from something like insulation boards had also been dug up (and thrown into my garbage bin) - about 5 cm thick, which somehow must have come from when they trenched to reach the fiber conduit and trenched along the house foundation. So I perceive it as they must have been along the house foundation, buried around the part of the house foundation below the electrical cabinet itself.
What purpose could these insulation boards/material have served and what does it mean that they apparently removed them? About 5 cm thick and maybe pieces about 40x20 cm in size (that was at least what I found that they had discarded).
As mentioned, the house is a 1 1/2 story villa with slab on grade from 1990.
The house is located in Torslanda, all the way west on Hisingen (Gothenburg) ;-)
The winters can be a bit variable out here, however, last winter it was very cold for a long period in February.
It's a bit "exciting" that those who dug the "trench" for the fiber removed so much of it and as it seems didn't replace it with anything..! :-o
As mentioned, they dug a narrow "trench" (about 30 cm deep) just outside the house foundation, but right below the electrical cabinet, they probably dug a bit deeper to reach the duct where, for example, the telephone cable already ran.
I assume it might have been there that they went all the way in towards the house foundation and reached this.
But is it likely that there is such stone wool along the entire foundation a bit down?
Is it really such a good idea that they've removed so much of it like this???
In addition, they had placed it completely loose in my trash can, which meant the trash collectors didn't pick up the garbage because there was loose material there without a bag..! :-o
Probably stone wool used as frost insulation, where in the country is the house located? There are different zones for how much of that is needed
The house is in Torslanda, which is the furthest west on Hisingen (Gothenburg) ;-)
The winters can be quite variable out here, last winter it was really cold for a long period in February.
Now I got some pictures from the company that dug the fiber next to the house, some documentation of what they've done. In the one that's more close-up, you can see some traces of that material. However, I don't really understand what purpose these mineral wool boards have here and not really the consequence of them removing it for me? There's some other stuff going in there under the electrical cabinet too - both electricity and probably further down there's water/sewer. I'm just a little "worried" that if these mineral wool boards (or whatever they are) insulated against the foundation or something else - and that it has some form of consequences. The fiber company that dug didn't know about it at all, they said it was probably some form of "fill," and that you don't have such materials there at all. As I said, hard to understand the consequences of it - and I don't really think the insulation boards/material ended up there by some "accident" as some form of "fill".
Should be edge insulation. Depending on where the house is located and other conditions, it is sometimes extra insulated around the corners. As mentioned earlier, it's ground frost insulation.
It should be edge insulation. Depending on where the house is located and other conditions, it is sometimes extra insulated around the corners. As mentioned earlier, it's frost insulation.
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Thank you @Centano The house is, as mentioned, located in Torslanda.
It's a typical 1 1/2-story house with a concrete slab from 1990.
Should I then just "accept" that the fiber company that dug simply has torn away these pieces of insulation and not replaced them with anything else???
The ground board is made of non-combustible, moisture- and water-repellent ROCKWOOL stone wool. The ground board is a very stiff and hard board that is specially adapted for ground constructions, ground floors, and basement walls.
Centano said: