ASBESTOS AS A HOME INSULATION
Insulation: wall and ceiling
Loose blown-in and batt insulation infrequently have been known to contain asbestos, especially in homes built or remodeled between 1930 and 1950.
This material was used for thermal insulation and can be found where interior rooms and spaces need to be protected from outside temperatures. These areas include outside walls and floor or roof/attic spaces between structural joists and rafters. This asbestos presents a hazard only if renovation and repair work disturbs it.
If you plan such a project and find asbestos-containing materials, be sure certified and/or qualified contractors/workers are consulted and hired so you do not spread asbestos fibers throughout your home and the environment.
Courtesy of The EPA
Certain products for floor coverings often contain asbestos materials