Vision Panel Frosting

Q: Can you place frosting on the vision panel glazing (windows) of the doors?

A: That’s a good question. If the vision panel is required in the door, then I would say it cannot be frosted. If the vision panel is not required, then I would say it could be frosted. The only vision panels in doors that are required that I am aware of are in doors in new construction smoke barriers (see section 18.3.7.9 of the 2012 LSC).