Jim H. White, B.A.Sc., P.E.O. CMHC National Office, Ottawa, Canada

Many houses and small buildings are moldy, and some have extensive growth of toxigenic molds that can cause health problems at lower exposures than the phyloplane molds that are more common outdoors. Canada Mortgage and Housing Corporation, the Canadian federal housing agency, has performed a great deal of research into moldy houses and has created a number of publications on mold avoidance and cleanup. This document is one of a new series that addresses toxic mold cleanup as well as solving moisture problems and avoiding mold growth in the first place.