Homes in San Mateo often face hidden roofing issues caused by poor roof ventilation and inadequate roof insulation. These problems may not be immediately visible, but over time they can lead to serious moisture buildup, attic condensation, and mold growth. Understanding proper roof airflow is essential for preventing these issues before they escalate. Homeowners can learn more from the ENERGY STAR guide to attic ventilation , which explains how balanced airflow helps protect