BAP (Bâtiment Administratif de la Pontaise) Lausanne

The Building

Building pre-intervention

Building pre-intervention: BAP_Lausanne VD_Pre_2_(C)Swisscastel.jpg

Building post-intervention

Built between 1881 and 1882 by architect Henri Assinare, the BAP underwent several transformations in the 20th century: in 1947, the crenelations forming the crown of the central body were removed; in 1951, a floor was raised; and from 1984 to 1986, a complete transformation and renovation of the building by architect Jean-Baptiste Ferrari enabled the Department of Social Welfare and Insurance (now the Department of Health and Social Action) to move in. Analysis of the facades showed that the building's windows were in poor condition, creating discomfort due to high heat loss. Generally speaking, the building's insulation was very inadequate and required upgrading at the same time as the work already scheduled for December 2019. A loan was therefore granted to renovate and insulate the building's facades and roofs.

The Solution

Solution post-intervention

What is the Solution?

Combination of active and inactive coloured solar modules integrated in the roof

Why Does it work?

The best compromise between performance and aesthetics. Optimum architectural integration, respecting the architectural and heritage aspects of the building and area.

PROS

Maximum ratio of performance to aesthetics
Adaptable to building and site requirements (colour, texture, shape)
The inactive modules provide a neat finish right down to the edges/angles, what not only preserves the appearance of the listed building, but also optimizes energy production.

CONS