ᐅ Renovation of older buildings, underfloor heating, electrical systems, plumbing, potential challenges, and more.

Created on: 12 Feb 2021 10:38
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Gille D
Hello everyone,
after years of reading along, the time has finally come—I’m going to renovate.
It’s a two-family house in the Ostallgäu region (Bavaria) with quite a bit of backlog in renovations. Also, the parents currently live on the ground floor and will be moving there permanently.
The house was built in the early 1960s and has been remodelled and renovated several times over the years. Still, I will probably need to redo a lot, partly because it’s necessary and partly because that’s what I want.
Water, electricity, heating, floors, quite a few windows, and various other things.
I already have an appointment with a heating and plumbing specialist, as well as for the electrical system.
Since I like to be well prepared, I wanted to ask a few questions here:
I would start in the upper floor. I want to renew all cables and pipes and switch to underfloor heating.
I hope the restrictions for the ground floor will then be limited to openings for new pipes and wiring. Is that feasible?

I would like to replace the gravel fill in the crawl space with a bound fill and then build a level floor structure with underfloor heating. Currently, there are still old radiators installed. The house is heated with oil, firewood, and solar energy. Can the heating specialist handle this, or should I continue to rely on radiators? Also, I would like to lay pipes for a future controlled mechanical ventilation system on the ground floor at the same time.

I would also appreciate any suggestions on what I should pay special attention to, what I should avoid, and what potentially sensible additional investments or alternatives there might be.

I am aware that many questions will arise during the planning and preparation stages, and I hope I can ask them here.

Thank you very much.
11ant12 Feb 2021 19:33
Gille D schrieb:

We are currently measuring the house

If the house is from the NINETEEN sixties, there was no war in between, and the documents should still be retrievable. It’s not exactly Napoleonic history yet.
Gille D schrieb:

and the order is also influenced by the older generation... just stubbornness from old age.

Are the seniors hoping for the mercy of the Grim Reaper so they won’t have to deal with the stress of the second construction phase?
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Tassimat
12 Feb 2021 20:21
Pitfalls of Underfloor Heating:
A higher floor buildup due to underfloor heating may require an additional step, ramp, landing, or similar at the staircase. If the floor is raised too much, the internal doors will no longer fit standard dimensions and will become more expensive. So, keep the door height in mind.
Which system should be used? Removing the screed, installing underfloor heating, and then applying a new screed creates a lot of mess.
How is the lower floor heated? A mixed system of underfloor heating and radiators is very unfavorable.

New pipes, new bathrooms, etc., are all very time-consuming as well.

Am I reading correctly that the lower level is intended to remain occupied during this? If so, it won’t be easy for weeks or even months…
11ant12 Feb 2021 20:30
Tassimat schrieb:

Am I understanding correctly that the lower floor is supposed to remain occupied during this time?

I read it as both generations still living elsewhere, but the seniors wanted to lock the door right after wallpapering and have their peace. They prefer the younger people to take care of all that fuss like modern heating and new light switches just for themselves.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
T
Tassimat
12 Feb 2021 21:11
I understand it as the parents currently living upstairs and then moving downstairs so that the upper floor can be renovated.

In any case... as soon as the house remains occupied, I strongly recommend hiring an architect to ensure that all work is properly planned and, above all, scheduled precisely. This is the only way to complete the construction quickly and minimize disruptions on the ground floor.

However, if the ground floor is also going to be renovated, it’s better to do everything at once and rent a vacation home for a few months. These can be found fairly inexpensively during the COVID-19 period.
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Gille D
14 Feb 2021 07:01
Since the family situation seems to be incredibly important: yes, I initially wanted to build a new house first (the plot is large enough) and then completely gut and fully renovate the old building. However, for logistical, financial, and various other reasons, I decided against it after long and careful consideration.
11ant14 Feb 2021 14:01
I believe it will only become truly clear here once you introduce the plans and images into the discussion. Are you following the thread by @LordNibbler: https://www.hausbau-forum.de/threads/sanierung-bestandsimmobilie-unser-weg-zum-haus.31363/?
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