Insulation Fibers and Skin Irritation

Why it matters

Fiberglass and mineral wool do not poison you, they stab you: millions of glass needles that lodge in skin, eyes, and airways. The itch is the injury, and scratching drives fibers deeper. Attic work in summer, when sweat opens pores and crews strip layers, is when it gets worst. Today: dressing for fibers, working so they fly less, and getting them off you the right way.

Hazards

• ⚠ Skin irritation and rashes from embedded fibers
• ⚠ Fibers in eyes from overhead installation
• ⚠ Airway irritation cutting batts and blowing insulation
• ⚠ Sweat plus fibers in hot attics multiplying the itch
• ⚠ Fibers carried home on work clothes to family laundry
• ⚠ Old insulation hiding rodent mess and other contaminants

Controls and safe practices

• ✓ Cover up despite the heat: long sleeves, gloves, and a collar beat a week of rash.
• ✓ Safety glasses or goggles for overhead work; fibers falling into eyes is the classic injury.
• ✓ N95 minimum when cutting, tearing out, or machine-blowing insulation.
• ✓ Cut with a sharp blade against a board instead of tearing; less airborne, cleaner work.
• ✓ Rinse with COLD water first after exposure; hot water opens pores and sets the itch.
• ✓ Do not rub eyes or scratch; flush eyes at the station, pat skin, tape-lift visible fibers.
• ✓ Bag or brush work clothes before the truck, and wash them separate from family laundry.

Crew discussion questions

1. What insulation work is coming, and in what heat?
2. Where is the eyewash or rinse water relative to the work?
3. Who has had fiber rash or an eye full? What helped?
4. How do we handle clothes so the itch does not ride home?

Applicable OSHA standards

29 CFR 1926.95, 29 CFR 1910.1200

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