Storm windows, made of glass or polycarbonate, are installed over standard windows to protect the latter from various elements of nature such as sun, wind, rain, hail and snow. In a standard skylight, the glass panels are held together with caulk, small nails, and frames. Over a period of time, extreme weather conditions crush the sealant and result in the formation of gaps and fissures through which energy loss occurs at a rapid rate. Shutters not only protect single pane windows from the damaging forces of nature, but also play an important role in energy conversion.

Today, window manufacturing technology is more advanced than it was 10-15 years ago. Compared to simple glass panels, modern glass panels are more energy efficient. Two, three or even four sheets of glass are glued on these panels. In an attempt to reduce heat loss, a low conductivity spacer made of aluminum or structural foam is placed between the sheets. The resulting space formed is filled with gases such as argon, krypton, xenon, or sulfur hexafluoride. Such a glass system provides better thermal insulation by competently reducing heat transfer rates. In addition to thermal insulation, these glass systems also help to mitigate noise. Sometimes in these systems, glass sheets of variable thickness are used primarily to enhance the window’s ability to attenuate noise.

Another important function of the storm window is that it provides protection against harmful ultraviolet (UV) rays. These radiations can not only discolor your valuable furniture and curtains, but can also damage your floor. Multilayer glass systems have a low-e coating, which is a thin layer of metal oxide deposited on the glass panels. The low-emissivity coating reflects the sun’s rays and thus prevents them from entering the room. In addition, it also prevents heat loss by conduction.

Longevity is another area where modern glass systems excel over storm windows. The latter requires a lot of maintenance just like the conventional frame. On the contrary, the former is more resistant, durable and resistant. The framework of the system is equally strong and energy efficient. Therefore, storm windows have surely lost their charm. In fact, if you install them over your modern windows, they will do more harm than good. The intense build-up of heat between the two windows will only work to shorten the life of both.