ᐅ Retrofitting Air Conditioning in the Strenger Baustolz House

Two years ago, we bought a terraced house, model "Jazz," in the Strenger Baustolz residential development. We want to install an air conditioning system to cool the converted attic and the bedrooms on the first floor.

Due to the serial construction method (concrete walls with cable ducts) and the external thermal insulation composite system (ETICS), retrofitting seems to involve considerable effort.

Is there anyone in this forum who has retrofitted an air conditioning system in a Strenger Baustolz house? We would greatly appreciate any technical advice on how to implement this. The Deutsche Reihenhaus uses a similar serial construction concept, so experiences there might be transferable.

Jens B. schrieb:

Due to the modular construction method (concrete walls with cable ducts) and the ETICS, retrofitting seems to us to be associated with a high level of effort.

No, the effort is comparable to most new builds. Although you have a serially prefabricated house, the retrofitting is similar to a "standard" house built with masonry and an ETICS.

nordanney schrieb:

No, the effort is the same as with most new builds. Although you have a serially prefabricated house, the retrofit is similar to a "normal" house that was built with masonry and has external thermal insulation composite system (ETICS).

This answer leaves me somewhat puzzled. A 12cm (5 inch) concrete wall with reinforcement means that, unlike with a masonry wall, I shouldn’t chase channels to install new electrical wiring. Therefore, I would have appreciated a concrete advice from an experienced resident of a Baustolz Strenger house. Split system? Multiple indoor units? Where do I tap into the power? Core drilling or using the riser duct? Or installing on the roof?

Jens B. schrieb:

This answer leaves me a bit puzzled. A 12cm (5 inches) reinforced concrete wall means that, unlike a masonry wall, I shouldn’t chase into it to install new electrical wiring. That’s why I would have appreciated a specific recommendation from an experienced Baustolz Strenger homeowner. Split system? Multiple indoor units? Where do I tap the power supply? Core drilling or through the service duct? Or installation on the roof?

It all depends.
How many rooms need cooling? Where are the electrical lines located?