WASHINGTON, March 18, 2011 /PRNewswire-USNewswire/ -- The U.S. Consumer Product Safety Commission (CPSC) and the U.S. Department of Housing and Urban Development (HUD) are issuing an updated remediation protocol (pdf) for homes with problem drywall. A study (pdf) conducted on behalf of CPSC by Sandia National Laboratories in New Mexico, finds no evidence of a safety hazard to home electrical systems. Sandia simulated long-term exposure of wiring and other electrical components to hydrogen sulfide gas, which is associated with problem drywall. Based on this study, CPSC and HUD staff, representing the Interagency Task Force on Problem Drywall, are no longer recommending the removal of all electrical wiring in homes with problem drywall. This change in the government's protocol may reduce the cost of remediation for many homes. After simulating more than 40 years of corrosive conditions that could exist in problem drywall homes, Sandia staff did not observe any acute or long-term electrical safety events, such as smoking or fire. Corrosion and blackening of the exposed electrical components did occur and was observed to be consistent with the characteristic corrosion reported to CPSC by thousands of consumers. Based on this study, it is the belief of the staffs of CPSC, HUD and Sandia that long-term exposure of wiring and other electrical components to hydrogen sulfide gases does not indicate a safety hazard to a home's electrical systems.
