"In December 1988, NCSBCS [National Conference of States on Building Codes and Standards] contracted with the U.S. Department of Housing and Urban Development (HUD) to investigate the cause of failures, sustained by manufactured homes following natural disasters. Historically, it has appeared that the number of manufactured homes and the severity of damage caused to those homes have been disproportionate to site built homes which have been exposed to the same disasters. This report covers four separate investigations conducted by NCSBCS at disaster sites involving manufactured homes. The purpose of the investigations was to determine which structural components of manufactured homes are most likely to fail in disaster situations and to recommend possible remedial actions to the Department."
Government Printing Office, Federal Digital System: http://www.gpo.gov/fdsys/