Fireproofing sprayed on structural steel framing may contain asbestos.

Both gypsum board (drywall) and associated compounds may contain asbestos.

Both floor tile and associated mastics (black stripes in photo) may contain asbestos.

Both finish and base coats of these ceiling systems may contain asbestos.

Both acoustical tiles and associated mastics (glue) may contain asbestos.

Fabric duct connectors may contain asbestos.

Materials on seams of ductwork may contain asbestos.

Both finish and base coats of these systems may contain asbestos.

Both insulation and associated jacket may contain asbestos.

Many types of asbestos-containing thermal system insulation may be found on pipes, boilers, tanks, breeching, etc.

Acoustical ceiling panels may contain asbestos.

Glazing compounds, glazing tapes and caulking associated with window and/or door assemblies may contain asbestos.

Asbestos-containing insulation on heating element.