When it is time for buying windows and doors, everyone is looking to buy ones which also offer energy performance. The reason everyone is concerned and should also be concerned is because the doors and windows that are not performing well are letting the energy leak and are causing the energy to get lost without it being conserved. This is the reason most companies selling windows and doors in Miami provide their customers with accurate information about the energy performance of their doors and windows. While companies are not really required to provide rating systems for doors and windows, many of them do because it helps their customers decide in the right way. Therefore, before you actually go out and buy these doors and windows, you must understand what these ratings by windows and doors companies in Miami mean.

The U-factor is one of the things that you need to know about the windows and doors company in Miami ratings. This is the rate at which a window or a door conduct non solar heat flow. When the U-factor is low, it means that the energy efficiency of that door or window is higher and you can prefer it over other products. One thing, however, that one must check when buying the same is whether the U-factor is described for only the glass or the entire window or door system, although if the rating has been issued by the fenestration rating council, you can be sure that it covers the entire system.

Another rating that you must consider when buying from windows and doors companies in Miami is that you should also understand the solar heat gain coefficient. This would tell you about the solar radiation that would be released into the home from these doors and windows. The lower the number, the lesser solar radiation will be released inside the home. This is extremely significant for places that witness hot climate throughout the year. Similarly, if you live in an area which is cold, you should opt for a higher heat gain coefficient. This would keep your home warm during the coldest weather too. Always remember that there is no ideal heat gain coefficient and you should choose the coefficient according to the climate of the area that you stay in.