A four storey non-residential building from the 1830s located in the dense city centre of Bagnères de Bigorre in the Pyrenean piedmont (FR-65000).
Semi prefabricated complete retrofit to the EnerPHit Standard.
Semi prefabricated complete retrofit to the EnerPHit Standard. The front side will be a traditional retrofit since the building is listed. The back side will be a prefabricated, compressed straw wall (Ecococon Wall). New triple glazed windows, heat pumps and ventilation with heat recovery will be added.
The planned renovation will bring heating demand down by a factor of more than 20 and also result in an impressive reduction in total primary energy.
PHPP verification sheet before retrofit
PHPP verification sheet after retrofit