Common reasons for disturbing attic vermiculite are: That’s good news, because most zonolite, a type of vermiculite insulation, falls into that category. The zonolite attic insulation trust, or zai trust, was established in 2014 when w.r.
Vermiculite / Zonolite Insulation in my Attic 8 Points
Most vermiculite attic insulation is zonolite brand insulation and contains asbestos.
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.
Zonolite attic vermiculite insulation was installed in the number of buildings in the united states between the 1940s and 1980s. Vermiculite from libby was used in the majority of vermiculite insulation in the united states and was often sold under the brand name zonolite. According to a helpful timeline published by grace [11], commercial mining of vermiculite began in libby montana in 1923, ten years after vermiculite mountain was discovered in that town. Zonolite vermiculite building insulation history & the libby montana vermiculite mine.
It was the trademark name of vermiculite product used for attic insulation in u.s.
Although this product's labeling indicates masonry fill, the vermiculite insulation was installed throughout the attic area (under walking boards). This trust contains funds that can be used to assist in the removal of vermiculite insulation if certain qualifications are met. About every two years the. The presence of vermiculite is a health hazard and should never be disturbed.
Zonolite vermiculite attic insulation trust.
The following chart provides approximate coverage data for a wall area of 1,000 square feet. Vermiculite sampling instructions general information (please see the detailed sampling instructions following this section) claimants may submit a sample of vermiculite attic insulation to the trust. Zonolite was a brand of vermiculite insulation that is contaminated with small quantities of asbestos. Zonolite® masonry insulation is free flowing vermiculite used to insulate masonry wall cores and cavities.
It has no longer been produced, but as many as 35 million were produced back in u.s.
Between the late 1940s and early 1990s that is the trademark name of a kind of vermiculite insulation. In 1985, ontario banned the use of the asbestos type of insulation used in vermiculite. In order to be eligible for reimbursement a claimant must be able to show: As a result, the occupants and workers are at risk, especially if the insulation is disturbed for any reason.
Depending on where you live, your home or business may still be stained.
Asbestos fibers make tremolite, which is highly toxic. Subsequent testing of this material indicated 2% tremolite asbestos. However, the asbestos product may still be present in some homes. Reveals that even minimal handling by workers or residents exposes them to danger from asbestos.
It also increases the fire resistance rating and sound transmission classification (stc) of.
If you have vermiculite insulation in your home, you should assume this material may be contaminated with asbestos and be aware of steps you can take to protect yourself and your family from exposure. If zonolite attic insulation was installed in a structure that you currently own or rent, or that you previously owned or rented, and you incurred expenses associated with the removal, abatement, reinsulation or containing the insulation, you. That vermiculite is the zonolite brand. Vintage bag of zonolite vermiculite insulation in residential attic space.
Zonolite insulation is no longer manufactured in the united states.
For years, zonolite was used in the insulation of homes throughout the united. Zonolite vermiculite has been found to be contaminated with amphibole asbestos minerals. The trust will have the sample analyzed by a certified lab to determine if it is consistent with the zonolite brand and eligible for reimbursement. Testing of zonolite insulation, along with internal documents from manufacturer w.r.
A range of tasks selected for evaluation included cleaning, working around, moving, and removal of zai in attics and living spaces.
Because of its easy installation, zonolite masonry insulation reduces labor and insulation costs. Though it could be called zonolite attic insulation and perhaps later, as well, the product has been used extensively in canada in the 1950s, tional insulation and possibly other names, too, was widely used in canada in the. Sandra taylor july 7, 2019. Several studies were designed and conducted to evaluate amphibole asbestos exposures in homes containing zonolite (expanded vermiculite) attic insulation (zai).
