Energy rehabilitation of buildings of earthen construction

There is a high percentage of the population that lives in earthen houses. Persists through the ages the idea that the earthen architecture has an excellent thermal performance. Nevertheless the standards of comfort of the most developed countries have reached such high levels that the constructive solutions are required to comply with measurable minimum standards, beyond the sensory perception. However, no known diagnostic tools or values are available that allow for adequate study in terms of both energy and environmental assessment certification and sustainability. Earth walls themselves are unable to achieve these values in their usual thicknesses, needing to be insulated. Through the study of a typical earthen wall, either built with rammed earth or compressed earth blocks, methods of intervention are planned in order to update their performance levels.