The best way for homeowners to improve the energy efficiency of their homes is to choose the right energy-efficient windows. As outdoor temperatures fluctuate, energy-efficient windows improve a home’s energy consumption and comfort. In this article, we will address types of energy-efficient windows, how they work, and the most efficient windows.
Types of Energy-Efficient Windows
Window labels have information and ratings you need for comparing products. However, there are specific window features that impact energy efficiency. There are several window types that can increase energy efficiency.
Fixed windows
Fixed windows do not offer any functionality. They are energy-efficient. Because you cannot open a picture window, you never break its airtight seal. Fixed windows are the perfect solution for the parts of your home that do not need ventilation.
Hinged windows
Hinged windows are designed for ventilation. These windows open by twisting a crank or pushing the windows with your hand. Hinged windows pivot outward on a hinge. One benefit of hinged windows is that they have lower air leakage rates than windows that slide open and closed. Awning windows, casement windows, and hopper windows are all types of hinged windows. Hinged windows can be used for strategic ventilation or paired with picture windows to add some functionality to your window combinations.
ENERGY STAR windows
ENERGY STAR windows are certified by the government and are based on performance ratings. ENERGY STAR certification is based on climate and geography, so a window that rates highly in the Southwest sun may not perform as well in the cold of the Northeast. Windows with an ENERGY STAR logo are a higher efficiency window than a window without the logo.
Insulated windows
For many years single pane glass windows were the standard. Over time, manufacturers decided to add another pane of glass. This provides extra insulation. Now insulated windows do not just have an extra pane of glass. Rather, each window pane is separated by insulated glass. Insulated windows are another energy-efficient window option.
Low-E windows
The outside of the window pane also matters. A low emissivity coating is added to the window pane. These windows are described as Low-E glass. Low-E windows boost thermal performance. Low-E glass helps block both ultraviolet and infrared light but lets in visible light. Low-E windows keep the heat from the sun out. The windows also work the opposite way by reflecting heat back into the house during the cold winter months.
How Energy-Efficient Windows Work
There are many benefits of having energy-efficient windows. One of the greatest benefits is the reduction in bills on cooling and heating. Modern technologies play a huge role in the functionality of windows that are energy efficient.
Glass coating
Low-E, or low-emissivity glass, is the most energy-efficient glass coating. It is used to block the sun’s rays by as much as ninety percent. The glass will keep the heat in on a cold day and the heat outside on a hot day. There are other glazing options such as tints, reflective coatings, and gas fills work in the same way. The goal of these window technologies is to save on the costs of cooling and heating.
Spacer systems
Windows are now more thermal-efficient and free of condensation because they are made using one hundred percent polymer foam for insulation rather than using metal. Spacer systems lower heat loss and increase the energy efficiency of windows.
Window technology
The use of gas and multiple glass panes are some modern technologies being used in windows. Triple and double-paned glass is more effective in blocking UV rays. Triple-glazed windows block as much as ninety-seven percent of sun rays and this makes a home more comfortable throughout the year and prevents fading of flooring, fabrics, and other items. Filling the entire space that exists between insulated glass panes with a gas known as krypton is another technology that reduces heat transfer, thereby increasing the energy efficiency of a window.
Most Efficient Windows
Most homeowners replacing their windows are wanting to improve the home’s energy efficiency. If you are considering replacing the windows in your home, you may want to explore energy-efficient window options.
Window style
When purchasing new windows you will need to consider the window style. The most energy-efficient windows are fixed windows or picture windows. This is because of the lack of seams and moving parts. That way no air can penetrate the windows, which provides impeccable energy efficiency, but does so at the cost of being able to open and close your windows. If you are looking to purchase operative windows, hinged-sash windows such as casement and awning windows are typically the most energy efficient as they create a firm watertight seal when closed.
Frame material
There are many window frame materials to choose from. This includes vinyl, fiberglass, wood, metal, and more. Vinyl is the most energy-efficient material of all these options. It has better natural insulating properties than fiberglass and metal and won’t warp or deteriorate as wood windows often do over time. Vinyl also has a high R-value, which means it effectively reduces heat transfer. This keeps warm air inside your home in the winter and prevents hot outside air from seeping inside your home during the summer months.
Window brand
Of course, you want your windows to be made well and brand names are not everything. Vinyl may have natural insulating properties, but a poorly made vinyl window won’t provide the same energy efficiency as a higher-quality wooden or metal window. Different window brands have specific installation requirements. Some brands are easier to install than others. Therefore, it is essential that you choose your windows before hiring an installer.
Finally, energy efficiency is growing in popularity. There is a lot to consider when choosing the best energy-efficient windows for your home. When it’s all said and done, having energy-efficient windows will be an improvement worth making.
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