What is vermiculite?

Vermiculite is a naturally-occurring mineral composed of mica-like tiny flakes. When heated to high temperatures, the flakes expand eight to 30 times their original size. Vermiculite is lightweight, fire-resistant, and is used in numerous products, including insulation for attics and walls.

Why is vermiculite a health hazard?

A mine located near Libby, Montana was the source of over 70% of vermiculite sold. There was a deposit of asbestos in the mine and the vermiculite was contaminated. The commercial name for the vermiculite sold from that mine is Zonolite. It was sold in Canada between 1920 and 1990. If you have vermiculite in your home, you should assume that it is contaminated with asbestos and take measures to protect you and your family from exposure.

Although the percentages of asbestos in Zonolite insulation are relatively low, when disturbed, the asbestos fibres can easily become airborne health hazards.

How We Can Help:

Vermiculite Sampling: Collection and submission of vermiculite samples to a third-party laboratory to confirm the asbestos content.

Vermiculite Abatement Project Management: Overseeing the removal of asbestos-contaminated vermiculite by a qualified contractor, and providing air clearance and reporting.

Vermiculite/Asbestos Air Testing: The collection of air samples to identify the concentration of airborne fibres in the home.