It can be noticed from Fig. 5 that the heating kinetic affects the specific heat evolutions. In fact, the peak melting temperature is shifted towards higher temperatures while the phase change peak becomes larger when the heating rate in increased. This finding can be explained by the increasing of the thermal gradient within the sample and the reduction of the time necessary for the material's transformation. Furthermore, given the low thermal conductivity of PCMs (about 0.18 W/m K [14]), the sample needs more time to reach the isothermal equilibrium state and therefore more absorbed energy to achieve the phase change. Accordingly, a slow scanning rate is needed in order to allow a faithful scanning of the material with the higher resolution while ensuring the thermal equilibrium condition within the sample [21]. In addition, using small scan rates is coherent with the slow ambient rates expected in buildings applications. Note that DSC measurements with rates lower than 0.5 K/min were not possible since the signal- to-noise ratio is reduced.