Roof Leaks

Roof leaks are one of the most common reasons for attic mold in Van Nuys and Sherman Oaks. When water seeps through aging shingles or damaged flashing, it infiltrates attic spaces and insulation, creating a moist environment where mold thrives. If left untreated, this moisture spreads through drywall and wood framing, weakening structural integrity and circulating spores throughout the property. Professional attic mold cleanup is essential to stop the damage early and protect your home.

Weather-Related Incidents

Seasonal storms and heavy rains across the San Fernando Valley often contribute to attic mold growth. When water penetrates the roof or siding, it lingers in hidden spaces like crawlspaces, insulation, or attic floors. Homes in low-lying areas of Van Nuys and Sherman Oaks are especially vulnerable after flooding or wind-driven rain. Even after conditions dry outside, trapped moisture can spark mold growth within 24–48 hours. Prompt attic mold cleanup and moisture control are vital to prevent costly damage.

Excessive Humidity

Poor attic ventilation combined with high indoor humidity creates the ideal breeding ground for mold. When relative humidity rises above 60%, condensation forms on rafters, insulation, and stored belongings, fueling rapid mold growth. Attic crawlspaces in Van Nuys and Sherman Oaks are particularly at risk, especially during warm months or after prolonged damp weather. Without dehumidification or airflow improvements, mold can spread into drywall and wood framing. Professional attic mold cleanup not only removes visible growth but also addresses humidity issues to prevent recurrence.