Reflex: development of a decision help tool for residential renovation

In Belgium, like in many European countries, the existing buildings represent the main part of the building stock. These buildings are relatively old, and most of the dwellings are not at all or not well thermally insulated; their airtightness is weak and their heating installations are old. We can find there real potential improvement and high possibilities of renovation. The owner, the contractor and the architect are confronted with many renovation options, and choosing the best intervention scenarios is never easy. It’s in this context that the software REFLEX (for Rénovation EFficace d’un Logement EXistant, in English: efficient renovation of an existing dwelling) has been developed.