Friable asbestos

Friable asbestos is the highest-risk form in a building. Think of old pipe wrap, sprayed-on ceiling texture, or boiler insulation that flakes when touched. A person can crush it with their hand, so it sheds fibers with very little force.

Federal rules draw a hard line here. The EPA treats friable material as a regulated type of asbestos during renovation and demolition. See regulated asbestos-containing material for what that means on a job.

For a Missouri building owner, the practical point is simple. Do not sweep, scrape, drill or cut a suspect material. Disturbing it can spread fibers through the whole building. Hire a certified inspector to sample it first. The lab result tells you whether the material is asbestos-containing material at all.

If the test is positive and the material is friable, plan on sealed containment and trained crews. A hard material such as floor tile behaves differently, and the next entry on non-friable asbestos explains how.