Vermiculite Insulation and the Dangers of Exposure to Asbestos

Starting way back in the 1920s and running all the way through until the early 1990s, there was an insulation product that was used in homes and businesses across North America called vermiculite insulation. This type of insulation was being used in most homes and commercial buildings because of its fire resistant properties and superior insulation properties. The downside though is that vermiculite has the propensity to release asbestos fibers if it is heated or agitated.

How do I find out if the vermiculite insulation in my house contains asbestos?

You can have a sample of the insulation collected by our team at got mold?™ for testing. You should not do this yourself as it is important to have someone who is experienced in conducting asbestos hazard assessments to ensure property health and safety practices are followed.

What happens if the insulation does contain asbestos?

It has to be removed. This type of abatement is a high risk asbestos abatement that requires OH&S notice of project, which is 14 days’ minimum notice to OH&S before project commences. A third party consultant is required to provide daily air monitoring, containment pre-inspection, final visual clearance sampling, final air clearance sampling and final report as required by law for High risk asbestos abatement.

3 stage containment with temporary shower including HEPA negative air filtration must be set up to prevent any cross contamination during abatement. All vermiculite and insulation is to be double bagged in yellow asbestos bags, the bags are to be washed and removed through shower/chambers. After all ACM vermiculite is removed the entire containment must undergo a thorough final cleaning HEPA vacuuming/wet wiping followed by visual inspection by consultant. After visual is cleared, entire containment will be sprayed down with fiber lock asbestos glue before final air clearance testing commences and containment is fully cleared for demobilizing.

Should I be worried about my health if I have vermiculite insulation in my house?

As stated in a WorkSafe Bulletin, “Asbestos in vermiculite insulation is only a health hazard if the vermiculite is disturbed and the asbestos becomes airborne. There is no real risk if the vermiculite is sealed behind walls or isolated in an attic. However, inhalation of asbestos fibres can cause mesothelioma (a fatal cancer of the lining of the lungs or other organs), lung cancer, or asbestosis (a permanent scarring of the lungs that restricts breathing).”

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