Phase change materials (PCMs) are an emerging technology that can be integrated in building envelope components. PCMs are
able to stabilise indoor air temperature and increase thermal energy storage especially in lightweight constructions. Within a
researchactivity aimed at developing advanced plasters with improved thermal properties, a plaster which incorporates a
microencapsulated paraffin-based PCM was developed. The paper highlights the importance of an overall analysis, facing both
operational and embodied energy, since the expected decrease of the energy consumption during the operational stage difficultly
counterbalances the high energy impact related to manufacturing processes