if you install new siding on top of old asbestos siding, you may keep the fibers trapped, but it would not necessarily be considered encapsulation. To do so properly requires a professional, who uses a certain type of sealant that needs to be spread over the asbestos in a number of layers in order to trap all the fibers. Although you may be able to buy this sealant yourself, it is highly advised that, once you find asbestos, you call a pro immediately. 

Performing abatement for asbestos means the contractor removes or encapsulates the asbestos to protect your family’s health. The term abatement refers to the steps required to keep asbestos fibers from moving into the air. Understanding what asbestos abatement is can help you discuss the case with your contractors by understanding the jargon they use. 

Regulations require certified professionals for removals and disposal in compliance with local and federal guidelines, ensuring safety and legality.

While there are some sealants designed to be spray-painted over asbestos to encapsulate it, you still want to make sure it’s a specifically designed product for this purpose—not just run-of-the-mill spray paint. Furthermore, be sure you aren’t inadvertently spraying the asbestos fibers around when you take on this project, and as always, be sure to wear the proper protective gear, including a P-100-rated respirator and a disposable body suit, so as not to inadvertently breathe in or spread asbestos fibers.