For this detail, you should use so-called Perimeter insulation, which are insulating materials intended for the application "components in contact with the ground" and handle moisture well. Mineral wool can become wet and then loses its insulating capacity and stability.
Perimeter insulation? Never heard of it, good that I asked, otherwise I would have used regular mineral wool. The perimeter insulation is surely available at the hardware store, right?
Perimeter insulation? Never heard of it, good that I asked, otherwise I would have used regular mineral wool. Perimeter insulation is surely available at the hardware store, right?
Yes, I also bought it at the specialist store. I used EPS, which is expanded polystyrene rigid foam. This is good insulation for the base area. However, it is not so easy to install this insulation. That is why I consulted a professional.