Chinese Drywall Testing: Sampling and Analysis

        Numerous homes manufactured in the United States between the years of 2004 and 2008 incorporated drywall made in China. Many of these homes now exhibit odors characteristic of sulfide. People living in many of these homes have reported a host of medical symptoms including; headache, nausea, nose bleed, memory problems and respiratory conditions.

       In addition to medical symptoms, it has been shown that many of the homes manufactured with Chinese drywall also exhibit corrosion of copper in electrical and plumbing systems as well as corrosion of jewelry, mirrors, plumbing fixtures and other metal surfaces. Studies have demonstrated that such corrosion is attributable to the same sulfide emission that is responsible for the reported medical symptoms.

        Harold I. Zeliger, Inc. has developed field and laboratory protocols to inspect, sample and analyze drywall in homes for propensity to emit harmful sulfides.

Harold I. Zeliger, Inc. provides the following services for each home investigated:

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Visual and olfactory inspection

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Hydrogen sulfide meter readings throughout the house

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Inspection of air conditioning units where feasible for signs of sulfide corrosion

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Inspection of electrical wires for evidence of sulfide corrosion

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Inspection of copper plumbing lines for evidence of sulfide corrosion

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Inspection of mirrors and other metal surfaces for evidence of sulfide corrosion

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Taking of wipe samples of corroded copper surfaces

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Inspection of the backs of drywall sheets for markings indicative of manufacture in China

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Photographing all signs and indications of corrosion

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Photographing all drywall markings indicative of point of manufacture

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Taking of samples of drywall in three (3) different locations in each house

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Carrying out laboratory analyses of the collected samples to determine the potential for these to release hydrogen sulfide

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Report preparation, including photographic evidence

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Storage of duplicate samples for potential future analysis

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Storage of wipe samples taken for potential future analysis

        In addition, Dr. Harold I. Zeliger, president of Harold I. Zeliger, Inc. is available for testimony as an expert witness for litigation involving any of the homes inspected and tested.

 

 

25 River Place Drive Suite 25-14
South Portand, ME 04106
Phone: (207) 747-4040 (office)
(518) 882-6800 (cell)  

hiz@zeliger.com