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 ...

Continuus Materials, a Texas-based company with a Northeast Philadelphia plant, will begin producing wallboard out of recycled flexible plastic and paper. At Continuus Material Recovery in Northeast ...

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.