Why can't I put my leftover gyproc/drywall in the garbage?
Gyproc is made of gypsum (calcium sulphate). When gypsum is deprived of oxygen, such as when it is buried in a sanitary landfill, it begins to break down in a way that releases a toxic gas. Gypsum is easily recycled into new gyproc/drywall. Phone the RCBC Recycling Hotline for the location of a collection facility in your area.