How cool if we built our houses with safer and more sustainable products than we currently do. Someday I could actually live in a hemp house! LOL! . Did you know that between 2004-2007 an estimated 100000 homes in more than 20 states were built with toxic drywall imported from China?Emissions from the drywall corrode plumbing and electrical systems. Homeowners also blame them for headaches and respiratory ailments.