Asbestos in Plaster Walls

Older home renovation has gotten complicated with all the asbestos identification, testing requirements, and removal regulations flying around. As someone who has worked on historic homes, I learned everything there is to know about identifying and handling asbestos in plaster. Today, I will share it all with you.

When Asbestos Was Used

Probably should have led with this section, honestly—asbestos was commonly added to plaster from the 1940s through the 1970s.

Identification

• Cannot identify by appearance alone
• Professional testing required
• Assume asbestos present in pre-1980 homes until tested

Safety Concerns

• Intact plaster generally safe
• Disturbance releases dangerous fibers
• Cutting, sanding, or demolition creates hazards
• Professional removal recommended

What to Do

• Test before any renovation work
• If positive, hire licensed abatement contractor
• Never disturb suspected asbestos materials
• Check local regulations for requirements