Identification guidance for Chinese drywall is based primarily on presence of metal corrosion in homes. Drywall made in China includes several chemicals and compounds not found in drywall from other areas. Chinese drywall is manufactured from the waste in coal plants, where the material that would not burn is made into drywall. The gases found in Chinese drywall include strontium sulfide and hydrogen sulfide are corrosive to copper and other metals and may cause health effects.

1. Orlando Home
Inspector Tells How To
Identify Presence Of
Chinese Drywall
Identification Guidance for
Chinese drywall is based
primarily on presence of
metal corrosion in homes.
Threshold inspection is to
first find signs of corrosion
and evidence of drywall
installation within the
time period of 2004 to
2009
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2. Chinese Drywall
includes chemicals
and compounds not
found in drywall from
other areas.
The gases found in Chinese
drywall, including strontium
sulfide and hydrogen
sulfide, are corrosive to
copper and other metals.
Chinese drywall reportedly
emits sulfur fumes that
produce a “rotten eggs” odor.
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3. Indicators of Toxic Chinese
Drywall
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•
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Rotten egg, sulfur, acidic type
smell
Continuous failures of air
conditioning coils and HVAC
units.
Noticeable corroded, or black
electrical wiring.
Oven, or stove elements or
refrigerator coils failing
Metals in home, door
hinges, doorstops, pipes, bath
fixtures blackening.
Corners of mirrors blackening
Drywall have
“Knauf”, “Tianjin”, made in
China, ASTM C36 stamped on
back
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4. The Bottom Line Should Be ”Does my home or
building have any corrosion”
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5. Call Me – 407-834-7714
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