A previous version of this story named sulfur dioxide as one of the primary drivers of health-related complaints linked to Chinese drywall. Hydrogen sulfide is the main chemical of concern.

Most walls in a house are made of wallboard, also called drywall. It’s compressed gypsum covered with a paper facing that is vulnerable because the material appears solid on the outside ...

Paper and wood products giant Georgia-Pacific Corp. yesterday said it will close three plants -- including Winnipeg -- and cut production at others to reduce its gypsum wallboard production in ...