ᐅ Log cabin made from 70 mm thick logs

Hello, I have a problem!
We plan to build a log house on our property. The house is to be constructed from 70 mm (3 inches) thick logs. An alternative option is to add insulation with 100 mm (4 inches) thick mineral wool and an outer log layer of 35 mm (1.5 inches). The house will initially be used only as a temporary residence but is intended to become a permanent home later on. The heating system will consist of a gas condensing boiler and radiators. What do you think— is the insulation sufficient, and does it comply with the applicable thermal insulation regulations (building code)?
Regards, Schmadding

We are currently asking ourselves the same question. We found a log cabin with 90mm (3.5 inches) logs and plan to insulate it ourselves with mineral wool and an exterior cladding. One side is almost entirely made up of insulated windows. I am currently in contact with the building authority and was informed that an energy certificate is only required if the house is occupied temporarily. I am waiting for feedback from the manufacturer to see if they can provide any information... We would appreciate hearing about other experiences.

A residential building is a residential building. This means you must at least comply with the energy saving regulations.
It does not matter whether or how often someone lives there.
A gas heating system without renewable energy is only allowed if it uses biogas.

That would also be our preference. Either with an insulation package included or installing the insulation ourselves (mineral wool/glass wool) plus exterior cladding. According to the manufacturer, floor insulation, moisture protection, and roof insulation would also be important. The question is how to prove that the energy-saving regulations are met in this case?

meisterbauer96 schrieb:

The question is how to prove that the energy-saving regulations are met?

The thermal insulation certificate is surely part of the required building permit in your case as well. Who is submitting the building application? If you have an architect for your garden house, they should take care of it. They also need to handle drainage planning and so on.
You can’t just build without permission. It doesn’t matter whether you’re constructing a 500 m² (5,380 sq ft) luxury villa or a small log cabin. The legal requirements are the same: building application, structural engineering, drainage, site development, thermal insulation certificate, compliance with energy-saving regulations, etc.

Yes, exactly. According to the manufacturer, there is apparently a service that handles the building permit application (at least the application and structural engineering). They can hardly take care of drainage, energy efficiency regulations, etc., without information about the site’s infrastructure and how much insulation I plan to implement myself. That’s actually what I’m struggling with right now. Maybe the manufacturer can at least provide the application and structural calculations, and I would then have to complete the rest myself or have an architect do it.