Most older cement board products contain asbestos. This type of material looks like a thin piece of concrete with fibers running through it and was frequently used as siding, corrugated roofing, and soffit material.

Blow-in asbestos was also frequently used for ceiling tiles and in ceilings above drywall before it was known to be dangerous. This type of asbestos looks gray or off-white with fibers in it.

Insulation Duct Work Flues Cowls Fireproof Materials (doors, cabinets, etc. ) Eaves Carpet Underlay Caulking and sealers Window putty Pipes (looks like several layers of paper wrapped around the pipe)

The professional will also dispose of their equipment and the waste from the HEPA vacuum as per your area’s regulations. Lab tests can tell you with certainty whether a material contains asbestos or not.