Vermiculite Insulation In Attic Canada

That s good news because most zonolite a type of vermiculite insulation falls into that category.

Vermiculite insulation in attic canada.

Grace under the trade name zonolite attic insulation zai. The libby mine supplied the majority of the world market in vermiculite based insulation. Vermiculite from the libby mine may contain asbestos. 3 184 of the homes evaluated were in manitoba and 215 6 6 per cent of these homes contained.

Vermiculite from the libby mine in montana usa is known to contain high levels of amphibolic asbestos. In order to be eligible for reimbursement a claimant must be able to show. Zonolite attic insulation and possibly other brands in canada during that time. From one third to half of the vermiculite from the libby mine was sold as attic insulation from the 1940s until 1984 when its sale by the company was discontinued.

Of concern is zonolite attic insulation. This material was sold by w r. The material is either present on its own or in combination with other forms of attic insulation such as blown in cellulose and fibreglass. However some of the vermiculite insulation sold in canada came from asbestos free deposits mainly.

The mine was closed in 1990. In the us almost all poured vermiculite insulation came from a mine in libby montana contaminated with varying amounts of actinolite or tremolite asbestos. The zonolite attic insulation trust zai trust was created to help educate the public about the possible health effects of asbestos containing vermiculite and to provide partial reimbursement for zai removal to qualified claimants. Products made from vermiculite ore produced by the libby mine were not widely used after the mid 1.

Of the 45 455 homes evaluated for energy efficiency across canada as part of natural resource canada s energuide for houses program from june 1 2004 to march 22 2005 vermiculite insulation was observed in 1 674 or 3 7 per cent of houses. So if you have vermiculite insulation look into this. As long as this kind of vermiculite based insulation remains undisturbed behind intact walls or in attic spaces and does not become airborne it should not be a concern. In canada vermiculite insulation is most often found in residential attic spaces.

This insulation was sold in canada under the name of zonolite and was extracted from the libby mine in montana usa. Extracted from the mine between 1920 and 1990 this vermiculite insulation was sold in large bags mainly but not exclusively under the trademark zonolite attic insulation. Residential commercial vermiculite asbestos testing sampling and removal service. The epa says that vermiculite insulation which is the pebbly stuff found in attics of many older homes is only risky if it contains more than one percent asbestos.

The trust reimburses homeowners for 55 percent of their removal and reinsulation costs with a maximum payout per owner of 4 125.