Old pipe insulation may be asbestos

Hazard communication 5 min 29 CFR 1926.1101

Plumbing, HVAC, Demolition

Why it matters

Plumbers and pipefitters in older buildings cut into, tear off, and brush against old pipe insulation every day. Much of it contains asbestos. Breathing the fibers can cause lung cancer and other deadly diseases 20 or more years later. There is no cure.

The talk

Old pipe and boiler insulation is often white or gray, chalky, or wrapped in cloth or paper. Elbows and fittings may be covered in a hard, plaster-like mud. In buildings built in 1980 or earlier, OSHA says to treat this kind of insulation, and sprayed or troweled surfacing material, as asbestos unless it has been tested and shown not to be. You cannot tell by looking. Before work starts, the building owner has to find out where asbestos is and share that with the employer. Ask your foreman what the survey says before you cut, drill, or remove anything in an older basement, boiler room, or crawl space.

If you see insulation that may be asbestos where you need to work, stop. Do not cut it, tear it, sand it, or knock it off to get at the pipe. Even a small repair that disturbs it is regulated asbestos work, and it can only be done by workers trained for it, using the right controls. Those controls include wetting the material, using HEPA vacuums, working inside a glove bag or small enclosure when needed, wearing the right respirator and coveralls, and bagging waste in sealed, labeled bags. If you have not been trained for this work, you do not do it. Tell the foreman and let a trained crew handle it.

Watch for damage you did not cause. Crumbling insulation on the floor, torn wraps, and dust on old pipes are signs fibers may already be loose. Do not sweep it up dry, shovel it, or blow it off with compressed air. Those are banned for asbestos debris because they throw fibers into the air you breathe. Do not eat or drink in the area. Do not take dusty clothes home. Keep the area closed off so other trades do not walk through it. If you think you were exposed, tell your foreman. The company may need to check the air and get you looked at. Taking two minutes to stop and ask can save your lungs for life.

Key points

Old pipe and boiler insulation in buildings from 1980 or earlier is presumed asbestos.
You cannot tell asbestos by looking.
Ask what the building's asbestos survey shows before you start.
Do not cut, tear, sand, or knock off suspect insulation.
Only trained workers using wet methods and HEPA controls can disturb it.
Never dry sweep or blow off asbestos debris.
Report damaged insulation and possible exposure right away.

Do this

Stop and ask when you find suspect insulation.
Keep others out of an area with damaged insulation.
Leave cleanup to trained workers with HEPA vacuums.
Wash up before breaks if you worked near old insulation.
Tell your foreman if you think you were exposed.

Do not do this

Do not cut through insulation to reach a pipe.
Do not use a dry broom or shovel on insulation debris.
Do not use compressed air to clean pipes or floors.
Do not eat or drink near old insulation.
Do not take dusty work clothes home.

Talk about it

Was this building built in 1980 or earlier, and do we have its asbestos survey?
Where in this building have we seen old insulation on pipes or boilers?
Who do we call if we need suspect insulation removed?

This is a short crew briefing. It does not replace a competent person, training, or the law.

Training aid only. This talk is not legal advice. It does not replace your company's safety program, a competent person, the equipment maker's instructions, or the OSHA standard itself.

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