Stark & Stark is conducting an investigation into problems with allegedly defective Chinese-manufactured drywall. According to a recent article posted by, the allegedly defective Chinese Drywall was, for the most part, produced by Knauf Plasterboard Tianjin Co. Ltd. of China. Knauf maintains that its Chinese Drywall is safe and damage to homes or people must be caused by some other source. However, recently, the Bradenton Herald reported that Michael Foreman, a construction consultant for Sarasota’s Foreman & Associates, Inc., said the Knauf plasterboard is, in fact, defective. Foreman also said that a sample he reviewed was found to contain a marking for an outdated standard: “ASTM C36.” “ASTM” stands for the American Society for Testing and Materials, an international organization that develops standards for products and materials. The article says that the Bradenton Herald explained that the C36 standard was replaced over four years ago with “ASTM C1396.” The Bradenton Herald also noted a piece of very interesting information: The C36 drywall was produced in March 2006, two years after that standard was changed.

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