New insulation materials for heritage conservation – aerogel insulation plaster: balancing energy efficiency and the preservation of the building’s fabric

Improving the energy efficiency of historic buildings presents planners, conservationists and contractors with particular challenges. Façade structures, stucco elements, joints and valuable building fabric must be preserved, whilst at the same time thermal and moisture protection must be improved. This presentation demonstrates how mineral aerogel insulating plaster can be used as a particularly slim-line form of internal and external insulation. With a thermal conductivity of λ = 0.028 W/(m·K), building material class A1 and its vapour-permeable and capillary-active properties, the system is particularly suitable for historic buildings and those worthy of preservation. Drawing on practical project experience, the presentation will explain the planning process, substrate preparation, the multi-layer system structure and key design details.