Impact of accelerated weather aging on building energy efficiency using cement and gypsum boards with shape-stabilized phase change materials.

ABSTRACT: This study evaluates the performance and durability of phase-change material (PCM)-enhanced gypsum and cement boards subjected to accelerated weather aging, and their subsequent impact on building energy efficiency. Gypsum and cement boards containing 10-30% shape-stabilized PCM (ss-PCM) were exposed to controlled environmental stress. Thermal conductivity, specific heat, emissivity, solar reflectance, and latent heat storage capacity were measured before and after aging. Prior to aging, gypsum boards achieved up to 5.4% net annual energy savings, and cement boards up to 4.8%. Post-aging, gypsum samples exhibited a near-complete loss of latent heat capacity, reducing energy savings to 0.7%. In contrast, cement boards with 30% ss-PCM retained approximately 54% of their original latent heat,

SUBMITTER: Lygerakis F 

PROVIDER: S-EPMC12630816 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature