Swedish Element House / AB-Elementhus Renovation vs Demolition

Hello Dietmar,

Regarding point 1, I can't say anything since I have the old wall structure. Nevertheless, the way to an expert of your choice (architect or similar) will probably be unavoidable to tackle this sensibly and permanently (dew point calculation, etc.).

Regarding point 2: we installed underfloor heating throughout the house; since the ceiling height is limited, it became a very low dry system, which lies between the battens of our solid floorboards. Somewhere in this forum there are also pictures of it, just search in my posts.

Regards

Hello Dietmar I have the same wall structure as you, only that I have a masonry clinker facade. I have never renovated anything on the walls. The house was built in 1980 and during that time I have cleaned and impregnated the cladding twice. For the heating, I installed a two-pipe heating system on the upper floor. On the ground floor, I only installed underfloor heating in the bathroom and put in new radiators everywhere.

Thank you very much for the information HarvSpec and Luponell! Since I (unfortunately) am not a DIY expert, I only let professionals handle the conversion anyway. During the initial inspection, I had the energy consultant who also created the current energy certificate present – and a heating engineer. I will report back after the inspection. I have downloaded almost all the pictures from the forum. I would also like the Thermisto dry system, but I think I first need to take a look at the floors. The neighbors on both sides with identical houses encouraged me, but they have not installed any new (surface) heating systems yet and have been heating with oil for over 40 years. That is no longer an option for me. I am curious to see how things progress and will report back here right after the inspection (on February 1st).

Hello Dietmar,

unfortunately, I am only getting around to replying today. We have a Coloroc facade and decided to keep it. Instead of insulating from the outside, we installed interior insulation and covered the cladding with clayboards and clay plaster.
In our immediate neighborhood, there are two more SEHs, one is brick-clad, the other externally insulated and plastered.
We are very satisfied with the Thermisto underfloor heating, although the installation (we did it ourselves, only the connection to the heating circuit distributors was done by the heating engineer) was a real pain...
I have to clarify: as long as you can use the prefabricated elements from Thermisto, the elements and pipes can be laid quite easily; it just takes a bit of practice to get the hang of it (literally). More difficult are the sections where the prefabricated elements cannot be used, e.g. in front of the heating circuit distributor where the pipes converge. That requires a lot of patience and some skill. But it is worth it.
Keyword floors: At first they looked quite good to us, i.e. level. But both the concrete ceiling to the basement and the floor in the attic formed by the ceiling elements were crooked and uneven, so an equalizing screed was necessary on both floors.
I wish you much joy with your house, and if you have any questions, of course, feel free to ask here or for details, e.g. about the underfloor heating, also by email.

Best regards
Christoph

One more thing I want to add, Dietmar: We have large parts of the underfloor heating beneath wooden floorboards. Thermisto has a brilliant system where the floorboards actually rest directly on the heat-conducting plates. It works wonderfully - just don't let any carpenter / dealer / salesperson tell you that it won't work. Floorboards on underfloor heating don't work with every type of wood, but it does work. Pine, for example, is very nice, larch works too.

Hello everyone,
we are currently interested in a Swedish prefabricated house type Visby and year of construction 1978.
We have noticed an unidentifiable smell.
During a phone call with a building biologist, I was told that the smell could be related to mineral wool having slipped downwards in the exterior wall and the resulting moisture.
Does anyone have experience with this house type?

I would be happy if someone could share their experience.

Best regards, Philipp