That s good news because most zonolite a type of vermiculite insulation falls into that category.
Vermiculite in attic canada.
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.
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.
It s fire resistant and has strong insulation properties.
Vermiculite removal and decontamination in the attic roof space loft walls and basement sub floors must be performed when there is presence of contamination.
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.
It was sold as zonolite attic insulation and possibly other brands in canada during that time.
Vermiculite from the libby mine may contain asbestos.
According to the health canada advisory vermiculite insulation containing amphibole asbestos the best way to minimize your risk of asbestos exposure is to avoid disturbing vermiculite based insulation.
The mine was closed in 1990.
That s why it s so much better to have an attic with no insulation at all than it is to have an attic with 8 inches of vermiculite.
Of concern is vermiculite ore produced by the libby mine in montana from the 1920 s to 1990.
As well as being rich in vermiculite this mine had the misfortune of having a deposit of tremolite a type of asbestos.
That vermiculite is the zonolite brand.
Since most of the vermiculite used in canada was taken from the libby mine the odds are quite good that there is asbestos in the vermiculite in canadian attics.
If your attic contains vermiculite.
Vermiculite was once touted as a miracle mineral.
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.
To assess the risk of asbestos exposure at a house a sample of the vermiculite would need to be analyzed by a lab.
Of concern is zonolite attic insulation.
In order to be eligible for reimbursement a claimant must be able to show.
The good news is that we don t live in our attics.
It was incorporated into home insulation products branded zonolite attic insulation in.
If an attic is insulated with a thin layer of vermiculite a layer that provides less than the minimum r value required by code it s hard to come up with a good way to improve the insulation layer especially if the ceiling has air leaks.
