Yes, even a single, one-time exposure to asbestos can be harmful and increase the risk of future illness, including certain diseases and cancers. The level of risk depends on several factors, such as the concentration and intensity of the exposure. A small, brief exposure is less likely to cause significant damage than an exposure to a high concentration of asbestos fibers.

The likelihood of developing severe health issues increases with repeated or prolonged exposure. Individual reactions to asbestos vary; some people may have multiple exposures without harm, while others are more susceptible. Asbestos-related illnesses may not manifest for 10 to 40 years after inhalation.

Due to these risks, it is crucial to take precautions. Personal protective equipment (PPE) may not offer complete protection, as fibers can get through small gaps. The EPA recommends hiring a professional for testing and removal if you suspect the presence of asbestos in your home. If you are concerned about a potential exposure, consult your doctor.

Asbestos was most commonly produced and integrated into building products from the 1920s to the late 1980s. In reality, asbestos use should have ceased much sooner because asbestos was linked to cancer in studies produced as early as the 1950s. You can even extend that number past the 1980s due to stockpiled materials and because some countries treat asbestos use differently. It may also be found more in commercial applications than residential.

Federal law doesn’t require homeowners to disclose the presence of asbestos in their home, but some states and local municipalities may require it. That is why it’s important to test an older home for asbestos and other health hazards before moving forward with a sale.

Since the EPA partially banned asbestos in 1989, it is no longer used to manufacture new siding in the United States; production had largely ceased by the early 1980s. Many other countries, such as Canada, Iceland, and Denmark, also have bans on asbestos. However, asbestos siding is still present in many homes built before the late 1980s. The only definitive way to know if your siding contains asbestos is to have it professionally lab-tested.