Gypsum insulation made prior to the 1970s included asbestos as a means of providing increased physical strength and insulation capacity to the product. Gypsum insulation made after the 1980s...
No insulation manufactured today contains asbestos. In previous years the types of insulation that contained asbestos included: calcium carbonate blocks and plaster used on boilers and hot pipes...
Yes, it was in much insulation that was in place in buildings in 1976, and it was in some insulation that was installed in 1976. However, by 1976 the word was beginning to get around and people were...