During the renovation of the residential building in the old town of Brugg, we applied 50mm of HAGA Biotherm to the exterior walls on the inside. This breathable insulating plaster, made of lime, improves the U-value of the old rubble stone wall from 1.7 W/m²K to 0.7 W/m²K, significantly enhancing the indoor climate without altering the protected façade.

We covered the separating timber stud walls with clay plasterboards and finished them with lime plaster. HAGA clay products are free of fired binders and contribute to a pleasant living climate through their excellent moisture regulation.