
Fire-rated sheathing is a specially designed building material used as an exterior wall covering. It is made from non-combustible materials, typically gypsum or cementitious fiber, that provide added protection against the spread of fire. This type of sheathing is intended to delay the progression of flames, smoke, and heat, providing valuable time for occupants to safely evacuate and for firefighters to contain the blaze. For more details: https://www.rockmaxboard.com/structural-mgo-sheathing/