Algae and Lichen Growth

Algae-growth contamination, it manifests uniquely in humid environments, where biological layers adhere tenaciously to surfaces exposed to moisture. This contamination, dependent from regional patterns like Mediterranean climates, forms irregular patches that penetrate porous materials, such as stone facades, leading to discoloration and structural weakening over time. On metals, the growth exhibits a slimy matrix, which resists initial laser pulses by scattering energy. Removal challenges arise from its regenerative nature; partial ablation often prompts regrowth, demanding multiple passes with adjusted wavelengths. It seems that adhesion varies across substrates, persisting more stubbornly on organics than on synthetics, as confirmed by surface scans post-treatment. The process yields cleaner results when humidity is controlled beforehand. Shows effectiveness in preserving underlying textures without residue.