Double Glased Roofing

More or less without exception, the outer pane of a double glazed unit should be toughened glass. The inner pane may be toughened or laminated depending upon location and height above ground.Generally two sheets of toughened glass provide the most economic solution for domestic projects where the roof light is no more than 5m above floor level. If the height exceeds this, then laminated glass should be used for the inner pane.