Renovation residential house Ramseier, Oberhofen

The project
The client wanted the aging building in Oberhofen to be brought up to today's standards. For the energy supply, it was planned to cover the entire roof with photovoltaic elements. The required heating energy was to be obtained from Lake Thun by means of a heat pump. In accordance with the expansion standard, the former two-family house was converted into a spacious single-family house, but in such a way that a two-family house could optionally be created again with little effort.

The construction method
The focus of the entire project was on ecology, and so soft fiber products from Gutex were chosen as the insulating materials. The existing exterior walls were rusted to the required insulation thickness and blown out with Isofloc. Furthermore, high-quality windows from the companies 4B-Fenster and Berger Metallbau (Berger swiss Fine Line) were used to meet the necessary energy requirements. Due to the extensive adjustments, the existing construction as a whole had to be statically checked according to the new requirements and - where necessary - supplemented or reinforced. In particular, the canopies, some of them double cantilevered, with a size of around 1.5 m, proved to be challenging.