Single family House

The Building

Building post-intervention

The building is a detached single-family house, a two-floors neo baroque construction with a mansard rooftop and is dated 1898. The general situation of degradation and the need to minimize energy demand collide with the important aspect of historic buildings preservation. As usual at road forks and corner houses in the Kirchenfeld district, according to the Kirchenfeld-Brunnadern building inventory, the house was designed with special care: the south-east corner of the house is characterized by a corner risalite, which is covered with the mansard roof. The house is listed in the cantonal building inventory and classified as worthy of protection (highest protection level). For this reason, any changes must obtain the approval of the Department of Historic Monuments.

More Details

The Solution

Solution pre-intervention

What is the Solution?

The intervention consists in the installation of thermal insulation under the ceiling of the cellar to keep the floor covering intact.

Why Does it work?

The intervention was carried out in the cellar where it was not necessary to pay particular attention to conservation.

PROS

The original floor covering stays intact.
The U-value of the floor is improved.

CONS

Since the insulation is installed in the cellar and not directly under the floorboards, it may not allow for future inspection or repair of the floor structure without removing the insulation.
Installing insulation under the cellar ceiling could reduce the height of the room slightly.

Insulation material

Mineral wool

Insulation thickness

140

Thermal conductivity

0.036

Health issue

information not available

Technical drawings

Floor detail.jpeg

Installation Method

This approach was minimally invasive to the building’s main living spaces, as the work was confined to the cellar. This method is reversible, as the insulation can be removed without affecting the original flooring.

Moisture Management and Technical Compatibility

information not available

Airtightness

information not available