BIOCLIMATIC ENVELOPES MADE OF LIME AND HEMP CONCRETE

Building envelopes are designed to regulate dynamic flows between interior and exterior environment. The paper presents a new type of sustainable building material made of rich lime and hemp chips and focuses on a particular mixture used to fill timber framed structures. Most of material’s hygrothermal parameters were measured in the Fraunhofer-Institut for Building Physics in Holzkirchen and its specific behaviour under transient conditions is studied through simulations with WUFIÒ 4.0 software. Three case studies were defined to point out its thermal and hygric inertia. According to bioclimatic principles, these effects can help architects and designers to combine comfort feelings and low energy demand. Results are compared to other materials and future works are discussed.