Asbestos encapsulation is the solution to this problem. The encapsulation doesn’t require any removal, transport, passivation and disposal of asbestos with all the cost associated. This technic consists in encapsulating the asbestos with a protective layer that will isolate it from the elements and any accidental perturbation, thus preventing any risk of release of fiber in the atmosphere.
The protective layer must have good characteristics of water tightness and resistance, good adhesion to the asbestos and resistance to puncture. Furthermore, this product must be applied with the minimum mechanical impact on the asbestos to avoid any release of fiber during installation as most of the asbestos roof or insulation are in a state of advance fragility.