We work on the fundamental characterisation and investigation of durability and deterioration problems in materials of the built heritage. We focus in particular on (historical) mineral binders (natural hydraulic lime, dolomitic lime, Roman cement, gypsum, early concrete), but also on organic additives in mineral building materials, colour pigments and paints and varnishes. Building on more than 20 years of research into the characterisation of binders used in historical buildings in Tyrol and South Tyrol, the main materials used have been characterised: instead of pure lime mortar, as is often assumed, the objects predominantly contain natural hydraulic lime and (partly hydraulic) dolomitic lime as binders. The focus of the research is to "understand" the framework conditions for production (raw materials, processing/working techniques), the setting processes, the interaction with environmental conditions and the resulting advantages and/or problems with regard to durability.

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In the Alpine region, dolomitic lime was used on a regionally significant scale in historic mortars and plasters for wall paintings and stucco decorations. In combination with environmental sulphate pollution and/or gypsum as well as moisture, the formation of sulphate salts leads to massive damage problems that threaten the existence of the cultural heritage. Using modern methods of material analysis in the laboratory and practical investigations on representative objects, damage phenomena are investigated on a fundamental scientific basis and conclusions are drawn for conservation and restoration practice.