Algae and Lichen Growth Contamination

Algae-growth contamination, it forms through photosynthetic activity on outdoor surfaces exposed to light and moisture, creating a tenacious green layer that penetrates porous substrates. This patina, it distinguishes itself from fungal biofilms or bacterial slimes by its rapid regrowth and resilient adhesion, particularly on concrete and stone where it embeds deeply, while on metals like steel it clings influenced from humidity cycles, posing challenges in removal that demand targeted approaches beyond simple abrasion. Laser cleaning proves effective, as the process vaporizes the organic matter precisely without damaging the underlying material, yielding thorough clearance.