What is Tempered Safety Glass?
Tempered Safety Glass has been repeatedly heated and cooled. This process makes the glass much stronger than regular glass. And if it does break, it crystallizes into tiny, harmless shards that won’t cut or hurt curious children or pets. Patio doors, entry doors, sidelites, and other large glass surfaces are usually required to be made with tempered glass. Andersen patio doors from Mr. Rogers Windows come standard with tempered safety glass.