Mold can indeed grow on concrete or brick walls, especially in damp environments where moisture is prevalent. Factors such as humidity levels, water leaks, and poor ventilation can contribute to mold growth on these surfaces. It's essential to understand the materials involved and the conditions that promote mold proliferation. Regular maintenance and moisture control are key to preventing mold issues. Curious about how to effectively manage moisture and protect your home? Ask Improvi.ai for personalized guidance.