Mold Risk Assessment

Based on IICRC S520 (Standard for Professional Mold Remediation). Mold colonization can begin within 24–48 hours of water exposure at humidity above 60%.

Mold Risk FAQs

How fast does mold grow after water damage?: Per IICRC S520, mold colonization can begin within 24–48 hours when indoor humidity exceeds 60% and organic materials remain wet. Visible mold typically appears within 3–10 days.
Can I clean up mold myself?: EPA guidelines allow DIY cleanup for areas under 10 sq ft (roughly a 3×3 patch). For larger areas, or any Category 3 water source, professional remediation is required per IICRC S520.
What air testing is needed after remediation?: Post-remediation verification (PRV) should include visual inspection and air sampling. Spore counts should return to outdoor baseline levels. Clearance testing by an independent industrial hygienist is the gold standard.