Zonolite Insulation is the Brand name of attic insulation sold between the 1940s and 1990s which consisted of the naturally occurring mineral vermiculite. It had a pebble-like texture and was typically gray-brown or silver-gold in color. Used in as many as 35 million U.S. homes and buildings, it was popular due to its lightweight and fire-resistance.
Why is it dangerous?
The vermiculite used in Zonolite has been reported to contain Tremolite Asbestos, which is known to be 10 times more carcinogenic then the typical Chrysotile Asbestos. Homes with asbestos-laced insolation could yield mild to moderate asbestos exposure over many years.
Removing Zonolite as a do-it-yourself project should not be attempted because the material contains such high amounts of asbestos. If you suspect your home or building contains Zonolite you should call the Abatement Professionals team to have your insulation tested and safely abated. Abatement Professionals has already helped several hundred folks with Zonolite removal and can assist with funding your abatement project through the Zonolite Attic Insulation ( ZAI ) Trust.