Friday, May 22, 2020

Asbestos in Heating Ducts Exposure and Risks

Heating ducts installed before the 1980s used insulation containing asbestos that is now known to cause cancer called mesothelioma. Mesothelioma is an exceptionally aggressive disease that’s caused by direct or indirect exposure to asbesto

Asbestos in Heating Ducts Explained

Heating ducts in residential and commercial buildings may result in dangerous asbestos exposure from many different sources.
For years, lagging cloth and asbestos paper was used by the HVAC industry to line and insulate pipes in heating and cooling systems within homes, offices, and other buildings.
Paper, cloth, and other insulation materials are often used to repair potential weaknesses in the heating ducts and reinforce the overall system.
For example, an adhesive is applied to any area along the duct system that is experiencing, or could encounter, an outflow of air, and may then be wrapped with insulating cloth or paper.
In some cases, duct dampeners are used to reduce vibration and secure flexible joints.

Asbestos in HVAC Insulation

In the prime of asbestos use, lagging cloth, duct dampeners, and other duct wrappings usually contained asbestos fibers.
Insulation manufacturers used asbestos because it was inexpensive and had many desirable properties. Asbestos is durable, heat- and fire-resilient, easy to use, and has superb soundproofing qualities.
Did You Know?
Asbestos was considered an excellent component for insulation. As a result, asbestos-containing cloth and pipe wrapping paper were used in many heating and cooling systems built or installed prior to the 1980s.
Today, North American lagging cloth brands no longer contain asbestos. However, many homes built or renovated before the 1980s will still have lagging cloth, dampeners, or asbestos
The following people are at the highest risk of exposure to asbestos in heating ducts:
  • Insulation factory workers
  • HVAC workers
  • Steel and duct workers
  • Construction workers
  • DIY homeowners
  • Family members
Although manufacturers stopped using asbestos in heating duct insulation, people who work with HVAC systems built before the 1980s are still at risk of exposure today.
These individuals should take care to use proper precautionary equipment when cutting, removing, or otherwise disturbing heating ducts that may contain asbestos.
Fortunately, undisturbed asbestos in harmless. It’s only when the asbestos is moved or damaged that the fibers become airborne and put people at risk of inhalation.
If you have heating ducts containing asbestos in your home, you’re advised not to remove the pipe wrap on your own. Instead, call experienced asbestos abatement technicians for assistance


<script data-ad-client="ca-pub-5560951430024354" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
When asbestos fibers are damaged or disturbed, they can become airborne. Airborne fibers can be inhaled or ingested by anyone nearby, often without a person even knowing.
Once these asbestos fibers are in the body, they get stuck in the body’s natural lining, and the body has no mechanism for removing the lodged fibers.
Did You Know?
Asbestos fibers are known to trigger a mutation in nearby cells, changing previously healthy cells into dangerous, cancerous cells known as mesothelioma. Over time, these mesothelioma cells grow and spread throughout the body.
Mesothelioma is extremely aggressive and challenging to treat. Mesothelioma can take decades to develop, slowly taking hold within the body, before symptoms present themselves.
By the time symptoms are noticeable, mesothelioma is often in its later stages, when it is exceptionally difficult to treat.
Although scientists are actively working on methods of detecting mesothelioma earlier, it remains a challenging disease to diagnose and treat. Unfortunately, most diagnosed mesothelioma patients have a life expectancy of less than one year.

HVAC boot cleared of Asbestos in Los Angeles

http://www.ewastedisposal.net