Vermiculite Ceiling Asbestos, Asbestos Ceilings Asbestos Testing

An even bigger risk comes when the ceiling starts to deteriorate or you remove it for remodeling.

Sexy halloween costume ideas. Not all vermiculite products contains asbestos. However if you believe that your home may contain vermiculite insulation it is reasonable to assume that it may be contaminated with asbestos. Concerns about asbestos contaminated vermiculite insulation a mine near libby montana was the source of over 70 percent of all vermiculite sold in the united states from 1919 to 1990.

However after around six decades of vermiculite mining under the trading name of zonolite it was discovered that the vermiculite was contaminated with naturally occurring tremolite actinolite asbestos fibres. Vermiculite is a silver gold to grey brown mineral. These panels contain puffed pockets of air giving them a textured appearance.

They were present in the same area during mining and posed a health risk when breathed in. Seal around penetrations in your ceiling such as the attic hatch cracks holes light fixtures ceiling fans and heating vents. In florida banks will not finance any home with vermiculite ceilings or aluminum wiring.

So to be safe treat all vermiculite insulation as if it contains asbestos. Theres no firm cut off date for asbestos contaminated insulation. Testing is expensive and inaccurate and the probability of asbestos contamination is so great that the epa recommends erring on the side of caution rather than testing for asbestos.

A heat treated form of vermiculite was used to make fire resistant ceiling and insulation panels. It could be purchased locally and could be installed by contractor or homeowner. Not all vermiculite sold in canada before 1990 contains asbestos fibres.

Vermiculite ceilings were popular spray applied ceiling finishes of the sixties seventies and well into the eighties. People in the town near mine on on oxygen tanks in their 40s. Vermiculite was a common attic insulation product sold from the late 1920s to the early 1990s.

There was also a deposit of asbestos at that mine so the vermiculite from libby was contaminated with asbestos. If any planned remodeling construction or other work will disturb the vermiculite have it removed by trained certified and properly equipped asbestos abatement contractors. Textured vermiculite ceilings are highly friable and easily damaged so theyre more likely to release any asbestos they might contain than for example asbestos floor tiles.

Vermiculite is the most toxic form of asbestos. Vermiculite insulation granules assume asbestos contamination. Not only did it function as an acoustic coating but was also used as a decorative texture finish when sprayed directly over concrete substrates or alternatively when sprayed over some type of mesh such as expanded metal lath.

Woman who discovered this gave a ted talk on the subject. User47935 jan 17 16 at 2042.