Abstract
Mould growth in indoor environments is a widespread issue, affecting an estimated 6.5 million households in England. The presence of indoor mould can trigger respiratory illnesses, allergies, and structural deterioration, leading to costly maintenance. Mould growth is influenced by biophysical factors such as temperature (20-30°C), relative humidity (70-80% RH), material composition, and water availability. Conventional antifungal treatments often rely on chemical biocides, which may pose environmental and health risks.
These extracted phenolic compounds provide antifungal properties, while the material’s hygroscopic nature helps regulate indoor humidity, reducing surface condensation—a key driver of mold proliferation. Additionally, incorporating seaweed waste into building materials leverages the construction process as a carbon sink, contributing to sustainable construction practices. The strategic application of Searamica in the indoor built environment is guided by CFD simulations and the VTT model, ensuring targeted deployment in high-risk areas to optimise both humidity control and antifungal effectiveness, while also achieving efficient material usage.
By merging nature-derived antifungal mechanisms, passive climate-responsive design, and circular material use, Searamica presents a scalable, sustainable, and preventative solution for healthier indoor environments and resilient architecture.