Asbestos Testing: How To Check For Asbestos
Asbestos Testing
Asbestos testing is the process of taking a sample of a suspected material and having it analyzed in a laboratory to confirm the presence or absence of asbestos fibers. This is a critical step for any homeowner, landlord, or contractor working on a building constructed before the 1980s. Because asbestos cannot be reliably identified by sight alone, professional testing is the only way to know for sure what you are dealing with.
Knowing the composition of building materials is essential for planning safe renovations, repairs, or demolitions. Testing provides certainty, allowing you to make informed decisions about whether to manage the material in place or proceed with a professional abatement process. It protects your health, the health of your family or tenants, and ensures compliance with environmental regulations.
The Testing Process
The process begins with the careful collection of a small sample of the material. While DIY test kits are available for purchase, collecting a sample yourself is not recommended. Inhaling even a small number of fibers during sampling is a risk. A certified asbestos inspector knows how to safely wet the material, use proper tools, and employ containment methods to minimize fiber release during sampling.
The sample is then placed in a sealed container and sent to an accredited laboratory that uses polarized light microscopy (PLM) to analyze it. This technique can identify the type and percentage of asbestos present in the sample. The lab provides a formal report detailing its findings, which serves as a official document for your records and for any contractors you hire.
When to Test for Asbestos
You should strongly consider asbestos testing before any project that will disturb building materials in an older home. This includes projects like removing popcorn ceilings, tearing down walls, replacing flooring, or updating old plumbing and heating systems. Testing is also advisable if you discover damaged or crumbling material that you suspect might contain asbestos.
If you are buying an older home, an asbestos survey can be a valuable part of the inspection process, alerting you to potential future liabilities and costs. Ultimately, the small cost of professional testing is a worthwhile investment for the peace of mind and safety it provides, ensuring you can protect yourself and others from accidental exposure.