This large renovation project at Rue Myrha, in Paris’s 18th arrondissement, gave birth to an innovative building – the first social housing project of its kind – which combines a metal framework with hempcrete.
The weight factor
Tradical® Hempcrete is an ultralight concrete weighing in at 330 kg/m3 compared with 2.23 t/m3 for reinforced concrete.
This was a huge advantage for the Paris site as it enabled the NORTH BY NORTHWEST architects and the LM INGENIEUR design engineers to reduce the foundation footprint to a depth of 3 m, with injections to a depth of 40 m.
A low impact on the environment
The project’s carbon footprint was also very good, as the impact of the construction stage was reduced by 60% with regard to Paris’s climate plan expectations, and it only represents a quarter of the overall carbon footprint (use and construction) over 40 years compared with a standard construction method.