By nature, windows sweat in extremes of weather. A vented storm covering system allows this moisture to escape from between the stained glass and clear protective covering. Improperly venting causes moisture to build up between windows and can promote wood decay in sills, etc. Our storm covering system provides perimeter venting through the frame.
In short... polycarbonates coverings discolor with age. Laminated glass remains clear. In addition, it provide protection to the stained glass. Laminated glass is actually 2 layers of clear glass with an inner layer of Saflex, a material which holds the glass together in the event of breakage. Laminated glass is the same material used in automotive windshields.