Topological optimization of 3DP plasters for indoor moisture buffering

Using 3DP building components as indoor passive humidity regulators can enhance indoor quality while reducing energy usage for active ventilation and air conditioning. This study optimizes the Moisture Buffering Value (MBV) of highly hygroscopic 3DP claddings, focusing on design approaches that increase surface area for moisture transfer.

Although chemical additives boost MBV, effectiveness is restricted by limited wall area available and shallow penetration depth. Components with complex geometries fabricated via Liquid Deposition Modeling (LDM) offer extended surfaces to enhance mass transfer. This study implemented a multi-platform workflow in Python and Grasshopper for modifying morphological features of 3DP of components with Triply Periodic Minimal Surfaces (TPMS) lattices to improve total moisture transfer.