Some potential locations for asbestos in a home built prior to 1990 are:
WALLS
Plaster/drywall joints
Stippled finishes
Thermal spray cement panels
Drywall joint compound
Plaster
FLOORING
Vinyl floor tile
Floor leveling compounds
Vinyl sheet flooring
Vinyl floor tile
CEILINGS
T-bar ceiling tile
Cement ceiling tile
Acoustic and stippled finishes
Plaster/drywall joints
T-bar ceiling tile
Glue-on ceiling tile
STRUCTURAL
Fireproofing spray
Cement pipes
Fire proofing
Cement pipe
EXTERIORS
Stucco insulation
Felts and mastics
Bricks and mortar
Asbestos cement
INSULATION
Boiler room
Fan room
Machine room
Crawl space
Wall cavity
Attic insulation
Duct insulation
Vermiculite insulation
PIPES
Insulation on either exposed or concealed pipes
Steam or hot water
Domestic water
Rain water lines
Gaskets in flanged pipe joints
Pipe insulation
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