During the renovation of the residential building in the old town of Brugg, we apply 50 mm of HAGA Biotherm to the exterior walls on the interior side. This breathable insulation plaster, based on silicate, 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 cover the separating timber stud walls with clay plasterboards and finish them with a clay plaster. HAGA clay products are free of fired binders and contribute to a pleasant living climate through their excellent moisture regulation.