Assessment of strips on intermediate ceilings

  • Erstellt am 2023-03-23 16:03:29

GarMir23

2023-03-26 14:24:40
  • #1
Thank you very much for the detailed information!


We are basically aware of that. The plan is a new insulation of the roof (unfortunately, this must be insulated from the outside and will then also be newly roofed) and possibly of the basement ceiling. According to the energy certificate, the house has a final energy consumption of 79.4 kWh/(m²*a) and is thus in the range of class C with a tendency towards B. A few years ago, the windows and doors were replaced with triple glazing. So it doesn't seem to be insulated that badly, does it?
The photo shows the connection of the intermediate ceiling (ground floor/upper floor) to the exterior wall (east side). Am I right in understanding that this is actually caused by wind whistling from outside through the exterior wall and the wall connection? Or is it perhaps rather air circulating between the floors? In the room where the photo was taken, the residents operated a wood-burning stove, by the way. Perhaps that is the cause of the soot?


We are indeed considering having the building fabric inspected in advance. However, a full appraisal is also very expensive, isn’t it? What options do we have?

The floor plans exist, and at least for the basement, there are still detailed specifications regarding the building materials.
The company that built the house still exists today. I have already made contact with their energy consultants. I might also ask again about the phenomenon shown in the photo. What exactly should I ask regarding the construction?

We are aware of the potential problem of contamination by harmful substances. According to the manufacturer’s statement, in their houses from this period, most of the harmful substances have generally already evaporated, so that the indoor air pollution is likely below the recommended limit values. But we have a guarantee from the broker that the indoor air will also be tested once more before purchase.
Furthermore, artificial slate panels are installed on two flanks of the house, which according to the manufacturer are the only components containing asbestos. Since these are on the exterior wall and as far as we know are intact, I don’t think this poses a major problem.

Thanks again very much for the help here. A bad purchase of this magnitude would indeed be fatal.
 

wpic

2023-03-26 17:46:50
  • #2
A real estate purchase consultation by an architect as a 3-hour on-site appointment should be available for a gross price of €500-600, including travel costs or depending on the travel costs. The summary after the property inspection is given orally and is usually completely sufficient to make a purchase decision. A written report is not prepared. That would be the work of an expert in real estate appraisal and involves significantly more time and the corresponding costs.

The possibilities for energy-efficient renovation must be tailored to the basic construction of the respective building. Within the scope of an [IKB], fundamental statements can usually already be made. When renovating prefabricated houses of this building age, it must first be checked whether the existing component structures (wall/floor/ceiling) function flawlessly in terms of building physics and are suitable for further development. Or whether they must be partially dismantled and strengthened.
 

GarMir23

2023-03-27 09:43:00
  • #3
Thanks again for the reply. That all sounds plausible so far. Is there a difference between real estate purchase advice from an architect and home purchase advice, for example from a building damage expert?
 

wpic

2023-03-27 14:52:30
  • #4
The experienced architect (specializing in building conservation) can provide the prospective buyer with comprehensive information regarding questions related to their renovation and (energy) refurbishment desires, including building and planning law aspects, in connection with real estate purchase consulting. It is important to consider all concerns of such a refurbishment plan.

Experts for building damage or energy consultants, who may have deeper knowledge in a trade as craftsmen, can possibly only contribute partial aspects of such planning. I have seen numerous refurbishment recommendations that had to be revised after a more intensive construction consultation/real estate consultation, as the basic assessment was insufficient. This limitation also applies to the "Individuellen Sanierungsfahrplan," which now must be created by an energy consultant for the use of funding programs from BEG/BAFA.
 

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