The dangers of asbestos have been known for a very long time and even the fellowships that made billions off of asbestos products have long since given up defending the virtues of asbestos. Unfortunately, there were way too many years between identifying the dangers of asbestos and getting asbestos pulled off the market but finally new asbestos products have been practically universally banned.
The biggest question with asbestos today is dealing with the past. people still suffer from mesothelioma and other respiratory problems caused by asbestos. perhaps an even bigger question is how to deal with the asbestos that is still out there in older buildings, concrete and insulation. For more than half of the 20th century asbestos was used just about in any place that required insulation. It was just about in any place out there - and still is.
Asbestos
Of procedure the communal outcry against asbestos called for the immediate discharge of all asbestos in any place people were exposed to the hazard. However, this is often easier said than done. In all too many cases the biggest cost complicated in renovating an older construction is dealing with asbestos. Often the cost of totally removing asbestos has prevented renovation of older buildings. Demolishing or renovating old structure used to be easy but not anymore.
For many years asbestos discharge was at a stand still. Those fellowships that could afford to take off asbestos insulation in their structure had already done so; often at great expense. Those fellowships with smaller financial resources usually just left their old structure alone and delayed dealing with the asbestos. finally in the 1990s governments started to approve alternate ways of dealing with asbestos in buildings.
Currently there are 3 approved ways of dealing with asbestos in older buildings. discharge is still the beloved way, but is very costly and not entirely without dangers. simply getting the asbestos out exposes it to people. The trick and cost in asbestos discharge is holding it out of the air and away from people. An added question with asbestos discharge is you have to setup new insulation and fireproofing, usually fiberglass, to replace the asbestos you are removing.
A second way of dealing with asbestos is called encapsulation. This involves de facto construction a structure colse to the asbestos so that it is totally contained. In some cases this is a viable selection but usually it is practically as costly as removal. Many structure cannot deal with the extra weight of the encapsulation structure.
The third way of dealing with asbestos is called encasement. With this procedure a special 2-part coating is sprayed over the asbestos totally preventing exposure to the fibers. The first coat is a primer that binds with the asbestos fibers, holds them in place and also prepares the exterior for the second coat. The second coat is the sealer that does just that, totally sealing off the asbestos.
Independent testing of encasement has shown that the final exterior is fully safe. There are no airborne fibers or other vaporing substances arrival off the surface. It is totally harmless. In the field, encasement has proven to be more than 50 percent less costly compared to discharge and can be done in half the time and with much less labor expense. The big drawback with encasement is the asbestos is still there but as long as the construction isn't changed or demolished the encasement coating renders the asbestos totally harmless.
Asbestos Encasement
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