Annealed glass is the fancy name for regular glass. Most windows are made with annealed glass. If you went to a glass company and bought a pane of regular glass, you would end up with annealed.
Much stronger than annealed glass, tempered glass serves two purposes. It is much less likely to break due to its toughened quality and if it does break, the result is small pebbles of glass rather than dangerous shards. Tempered glass is a type of safety glass.
Looking for some privacy or added design in an interior storm? You can create the look you want by choosing a variety of acid washed glass or patterned glass. We have a large assortment of obscure, semi obscure, vintage patterns, and modern patterned glass. You can view them here.
Sometimes referred to by their brand names of Plexiglas® and Lexan®, acrylic and polycarbonate have distinct advantages and disadvantages when used in storm windows. The main advantage is they are somewhat shatterproof and are widely used in group homes and institutions. They are lightweight and safer to remove and reinstall. However, most acrylics and polycarbonates need special cleaning agents and scratch much easier than glass. They are are more flexible than glass and in large sheets may need a stronger frame to maintain rigidity.
It is not uncommon in New England offices to see electric heaters under desks in older buildings. The cost of wintertime electricity in New England is through the roof. Adding to the expense are the dangers of portable electric heaters. Employees and customers can trip on the heater or the cord. Some types of electric heaters, left unattended, present a fire hazard. A safer one-time investment in storm windows can accomplish more comfort than electric heaters without the dangers and liabilities.
Be comfortable with energy efficient inside storm windows.
Installation of storm window panels is available in Massachusetts, Northern Rhode Island, and Northeast Connecticut.