Topic 03
Mold Remediation
Mold isn't a cleaning problem — it's a moisture problem. In East Texas humidity, mold can establish in 48–72 hours after any water intrusion. Proper remediation follows IICRC S520 and fixes the source, not just the surface.
What you'll learn
- The difference between mold cleaning and mold remediation
- Containment, negative air, and HEPA filtration explained
- Removal vs encapsulation — when each is appropriate
- Post-remediation verification (PRV) and third-party clearance
Bleach is not a remediation method
Bleach discolors surface mold but doesn't penetrate porous materials, and it's not recognized under IICRC S520. It masks the problem while roots stay embedded.
Find the moisture source
Every remediation starts with identifying and fixing the moisture: humidity, plumbing leak, roof leak, HVAC condensation, or building envelope failure.
Third-party clearance testing
For anything larger than a small isolated area, an independent industrial hygienist should verify the remediation before the wall goes back up.
When to call a professional
Visible growth larger than about 10 square feet, HVAC contamination, hidden musty odors, or anyone in the home with respiratory symptoms.
Quick answers
Do I need a mold test before remediation?
Not usually. If growth is visible, remediation is the priority. Testing is most valuable for clearance after the work is done.
Will my insurance cover mold?
Coverage varies. Sudden and accidental water leading to mold is often covered; long-term humidity or maintenance issues typically aren't.