Sarri, ABechki, DBoughali, SBouguettaia, H2023-05-212023-05-212019-01-01Sarri ,A , Bechki ,D ,Boughali, S,Bouguettaia,H.Journal of Fundamental and Applied Sciences.VOL11 N01.01/07/2019.university of el oued [visited in ../../….]. available from [copy the link here]1112-9867http://dspace.univ-eloued.dz/handle/123456789/23486ArticleReducing energy consumption is an increasingly important issue for the residential sector. As a result, attention to thermal insulation systems for buildings has increased in recent years. The use of phase change materials (PCMs) is an attractive way for the development of energy-efficient buildings by integrating with the walls, ceiling and floor, which offers considerable possibilities for insulation and to ensure a certain thermal comfort, because of their high storage density. This paper summarizes the essential knowledge on solid-liquid phase change theory, PCM classification, some previous work on storage of latent thermal energy in buildings, covering experimental and numerical studies with different applications of PCMs to buildings.enPCM; Thermal storage; Latent heat; Building envelopesArticle