Mold Awareness During Demo and Water Damage Work
29 CFR 1910.134 · 29 CFR 1926.95 · This talk in Spanish
Why it matters
Open a wet wall and you may release a face full of mold spores. Mold grows anywhere water sat for more than a couple of days: behind drywall, under flooring, inside HVAC. For most people it means allergies and irritation; for some it triggers serious asthma attacks and infections. There is no OSHA mold standard, but the general duty to protect workers applies. Today: recognize it, contain it, protect your lungs.
Hazards
- ⚠ Spore clouds released when opening wet walls and ceilings
- ⚠ Hidden growth behind vinyl wallpaper, cabinets, and insulation
- ⚠ Contaminated HVAC systems spreading spores through a building
- ⚠ Dry demo of moldy materials filling the air with dust
- ⚠ Allergic and asthmatic reactions in sensitive workers
- ⚠ Sewage-related growth carrying bacteria along with mold
Controls and safe practices
- ✓ Survey water-damaged areas before demo; probe and peek before you tear.
- ✓ Wet down moldy materials lightly before removal to keep spores out of the air.
- ✓ Isolate the work area: plastic sheeting, closed doors, and HVAC off or sealed in the zone.
- ✓ Wear an N95 at minimum for small areas; larger or heavy contamination needs a respirator program and may need a remediation contractor.
- ✓ Gloves and eye protection; wash hands and face before eating.
- ✓ Bag moldy debris at the point of removal instead of carrying it loose through the building.
- ✓ Report symptoms: tight chest, wheezing, or worsening allergies on the job.
Crew discussion questions
- Where has water been sitting in this building, and what is behind those surfaces?
- What is our containment plan before we open wet walls?
- Who has allergies or asthma the crew should know about?
- At what point do we call a remediation contractor instead of handling it ourselves?
Applicable OSHA standards
29 CFR 1910.134, 29 CFR 1926.95
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