High-impact hurricane glass is made from a double, triple, or quadruple sealed quarter inch sheets of glass. The hurricane window glass is then laminated together between Polyvinyl Butyral (PVB). When struck by a projectile, this type of hurricane glass maintains its shape and form, and keeps projectiles from entering the home. Even if the glass is impacted, tested hurricane windows will not shatter. This creates a barrier around your home that not only prevents against hurricanes, but withstands water damage, deters burglars due to its strength, provides UV protection, lowers heating & AC costs, and increases the overall value of your home.