Homeowners who are concerned about the insulation in their home may have heard about something called vermiculite and its connection to asbestos. Bridgeport, CT, asbestos removal experts Astech are here to answer your questions about this often-misunderstood material.

What Is Vermiculite?

Vermiculite is a shiny mineral that can be used as insulation, packaging, fire protection, and even in potting soil. It expands when heated, allowing it to grow up to 30 times its original size. This makes it an excellent source of lightweight insulation that is compressible, fire-resistant, and effective.

Why Are People Concerned?

Over 70% of the vermiculite mined in the United States between 1919 and 1990 came from a single mine in Libby, MT. Unfortunately, this mine also contained an asbestos deposit. As a result, much of the vermiculite was contaminated with asbestos fibers before it went out on the market. This contamination can make it dangerous.

How Do I Tell If Vermiculite Is In My Home?

This insulation is generally found as a loose-fill product, which may look like pebbles or small pieces of wood. You usually won’t find it as a solid board or in roll form like fiberglass. The photos here can serve as examples of what to keep an eye out for.

Is Vermiculite A Danger To Me & My Family?

On its own, vermiculite is completely safe. However, when contaminated with asbestos, it can pose the same risks as straight asbestos would, such as respiratory disease and even mesothelioma, a deadly cancer. Because of this, it’s important to find out where your vermiculite insulation came from and avoid disturbing it if you’re not sure it’s safe.

If you suspect that the vermiculite in your home may have asbestos, or if it was installed before 1991, you should have skilled professionals investigate possible contamination and remove the insulation if necessary. Astech can help those in the Bridgeport area gain peace of mind. Learn more about their asbestos removal services on their website, or call (203) 335-0502 to speak with a member of staff and schedule an appointment.