Overall retrofit of Swiss apartment blocks.

In the near future a large number of dwellings in Switzerland dating from the 50s to the 70s will need to be retrofitted in order to upgrade the comfort levels to today's standards and to reduce the energy consumption. By carrying out an overall retrofit of both the envelope of the building and the building services this can be successfully accomplished. Two retrofit projects of apartment blocks, one in Meilen and one in Cossau, demonstrate how a well-balanced strategy can achieve a comprehensive and economical retrofit.

The key to persistence.