Why Vermiculite Can Be a Hidden Hazard
Vermiculite insulation was widely used in attics and walls before the 1990s. The problem? Much of it came from sources contaminated with asbestos. Once disturbed, asbestos fibers can become airborne and cause life-long health risks.
If your home or building contains vermiculite, assume it may be contaminated until it’s professionally tested and removed.
Risks of Delaying Vermiculite Removal
Pebble-like, loose-fill insulation with a grey-brown or silver-gold color
Found in attics, walls, or crawl spaces in homes built before the 1990s
“Zonolite” brand markings on bags or packaging (if still present)
