Check out these giant rolls of thick fiberglass facer material at the USG factory in Florida. In this video, Matt Risinger points out the big differences between glass-mat and paper faced sheathing. He gets a big surprise when he sees just how big the rolls are. Usually they are already bonded to a 5/8th board. So, why should big companies use the fiberglass sheathing over the paper? To answer this question, we'll learn about the support, rot, resistances, and durability of each of these products. Risinger also talks about the change he believes builders will make in the future. Here we'll gain insight into the glass facer material from USG. All the company's glass-mat panels feature an inorganic water-shedding glass-mat enclosure and a noncombustible gypsum core that's treated to achieve high levels of moisture and mold resistance. If you're a builder pondering sheathing this is a video for you. For more information about USD, visit www.usg.com/Glass-Mat2