![]() ![]() Step Two: Drywall installed between 20 must have at least two of the below. Step One: A visual inspection must show blackening of copper electrical wire or air conditioning evaporator coils AND drywall installed between 20. The United States Consumer Product Safety Commission (CPSC) defines "problem drywall" as meeting these criteria: "Problem drywall" refers to all affected drywall regardless of its country of origin. ![]() Some problem homes contained drywall manufactured in North America and some had drywall with no indication of origin. Not all of the homes with problem drywall contained drywall manufactured in China. Some residents reported a strong sulfur smell and premature corrosion or deterioration of certain metals (especially copper) in their homes such as air conditioner coils and electrical wiring. Reported symptoms included headaches, irritated and itchy eyes and skin, difficulty breathing, persistent cough, runny nose, sinus infections and congestion, sore throats, frequent nosebleeds, and asthma attacks. Many reported a decrease in symptoms when they left their homes and recurrence of symptoms upon returning. In 2008, homeowners in Florida began reporting upper respiratory irritation in their recently built homes. Unfortunately, some of the imported drywall was contaminated with toxic chemicals. Some suppliers increased their importation of drywall from China to meet the demand. Drywall that has been damaged by water loses its strength and can grow mold.Īfter very active hurricane seasons in 20, there was a shortage of US-made drywall due to new home construction and rebuilding. Workers should wear personal protective equipment such as safety glasses, gloves, and dust masks when handling drywall. ![]() Drywall installation generates gypsum and silica dust, which are irritating to the lungs. Drywall is made of gypsum (calcium sulfate dihydrate), paper, and additives such as mica, clay, and resin. Drywall (gypsum board) is used in North American construction as a faster alternative to plaster and wood. ![]()
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