Whats asbestos siding and how is it better?

Asbestos siding is a type of siding that was used between the 1920's and 1970's. There are health concerns with the use of asbestos on homes now. Asbestos was then added to cement to provide support, fire-retardant properties, and insulating. You can compare asbestos siding to others on the internet or go to a home-improvement stores.