Window - Installation / Insulation / Sealing / Execution

  • Erstellt am 2019-12-04 13:03:46

11ant

2019-12-05 02:00:02
  • #1
This unfortunately has to do with the very popular photography style "zoom instead of context" :-(
 

rick2018

2019-12-05 06:50:40
  • #2
as others have already said, this looks like botched work.
Complain directly (in writing) and have it corrected.
I would like to see pictures, plans... of your construction project. We also build with concrete but not with ETICS, instead with a ventilated cladding facade made of aluminum CuBond.

We also have a different glass system and maybe the Swiss team is more meticulous, but for me, with my small glass surfaces, for example, it looks like this:


 

guckuck2

2019-12-05 11:19:13
  • #3
Yes, those are proper sealing tapes at Rick and thus even better than foils. I don't think much of compressible tapes at the window, but it seems to be standard nowadays. The photos clearly show how not to do it (wrapping around corners) and as Hix wrote, the layman can no longer see whether the tape has essentially worn out, i.e., lost its properties due to excessive expansion. Always order foil installation!
 

Dr Hix

2019-12-05 12:06:47
  • #4
That should be the Siga Fentrim IS2. The (Swiss) Mercedes among sealing tapes.

As you can nicely see with , you can actually seal the corners really tightly with a little patience. Also nice: the three (thermally separated!) angles at the bottom. Two would probably have sufficed there, but in general it is probably difficult to find a company that pays attention to such details. But at the (presumed) price, I would not expect anything else either.
 

alive&kicking

2019-12-13 11:37:55
  • #5
Thanks already for your answers.
Since my site manager played down the issues a bit to calm us down, I contacted the well-known Institut in Rosenheim. I actually wanted a site inspection, but they had no time at short notice, so I sent photos and used the paid telephone service. Of course, all the errors/deficiencies were confirmed there. (I can only recommend the service, precise and understandable.)
After I confronted our site manager with the facts and mentioned the abbreviation of the institute, things quickly started moving.
The errors will of course all be corrected and, of course, it was only misunderstandings and communication errors. What I liked was that the managing director of the window company personally got in touch and assured that everything would be fixed. Let's see how they manage that.

In detail:
- Minimum joint widths (we still have some leeway downwards) are realized by thinner frame extensions at the bottom. The affected elements will be lowered slightly. I'm curious how they will solve this with the existing drill holes.
- According to the telephone service, two narrower compressible tapes are not permitted for a 20 cm window element and the joint cavity must be almost completely "filled"; window foam is permissible. Two compressible tapes stuck on top of each other to fill a wide joint are not acceptable.
- Sealing tapes will be corrected or redone. Compressible tapes folded around corners are also not allowed.
- Basically, special compressible tapes are permitted (with exposed concrete walls sealing tapes also don't look very good).

Yesterday, installation of the upper windows began and two new issues came up.

As already mentioned, we have large aluminum window elements. According to the window company, there are no thin aluminum frame extensions (doubtful!!). They are now executing this with plastic extensions. These are not visible because they are under the screed and ETICS, so it wouldn't bother us, but we are also not happy with it. How about the load-bearing capacity here? Can they handle that?

And it was found that the rough floor outside the tolerance. It rises about 1.5 cm from the stairs (FIX) to the window, over a length of 5.4 meters. Our site manager wants to correct that via the screed, max 5 mm over this length. Is that okay?
 

alive&kicking

2019-12-13 11:44:43
  • #6
@ Rick2018
this has really been done very neatly by you.
I suspect you will leave everything inside as exposed concrete, if it looks inside like it does outside, then it will be cool!! Not so sterile, a bit rough!!
 

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