**Asbestos Millboard - **
Asbestos Millboard was used in the construction of walls and ceilings, particularly around furnaces and wood-burning stoves where insulation and fire protection was required. Most varieties of asbestos millboard typically contained between 80 and 85 percent asbestos.
In 1977, the use of asbestos in most construction materials was banned by the Consumer Product Safety Commission. The ban was enacted due to the known dangers of this substance. Asbestos fibers, when inhaled into the lungs or otherwise ingested, can potentially cause diseases such as asbestosis and mesothelioma, both of which have very high mortality rates. These diseases are most commonly caused by long-term asbestos exposure over several years, but mesothelioma has been known to be caused by even very short term exposure.
The presence of materials such as asbestos millboard in your home is not necessarily a cause for alarm. These materials are safe as long as they are in good condition and are not disturbed. Asbestos is dangerous only if fibers are releasing into the air and are able to be inhaled into the lungs.
If your home was built during or before the 1980s, it is possible it may have been built using asbestos millboard or other asbestos-containing construction materials. While materials that are intact and in good condition pose little danger, it is important to know whether asbestos-containing materials exist in your home so that you monitor the condition of the materials. It is particularly important to find out if you are planning to remodel or renovate, as this is likely to cause disturbances that may release asbestos fibers into the air.
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