What is Greenboard Drywall?
Learn more about where greenboard drywall should be used. Contrary to what some people may think, greenboard drywall is not used in shower stalls. What is Greenboard Drywall? Greenboard drywall is the same as regular drywall except for two things: 1.) greenboard drywall has a water-resistent paper covering, and 2.) the paper covering for greenboard drywall is, as the name implies, green. The gypsum material sandwiched between two paper coverings is the same. Also, whereas regular drywall comes in 1/4″ and 1/2″ sizes, greenboard drywall comes in 1/2″ and 5/8″ sizes. Greenboard drywall goes by various brand names, such as American Gypsum’s Aquabloc. Greenboard Drywall Cannot Be Used for Wet Applications This is a common misunderstanding. While greenboard drywall’s paper covering is water-resistent, it is not waterproof. Not only that, but the brittle gypsum core is not suitable for wet applications. A cemen