Modern types of windows are specially designed and made to keep rain, wind, sleet, and snow during winter out while keeping warm air inside the house. These replacement windows also have the ability to keep heat outside during really hot days while still letting light in and providing a nice view of the outside world. These major qualities perfectly define energy efficient replacement windows. A lot of things are included in the production of energy efficient windows. Some of the most important things are the overall design of the product, the materials to be used, and the process as to how they are going to be made. All these things play an important role in making a replacement window that will help people save thousands of dollars on both their electric and gas bills over the entire lifespan of the product. The most energy efficient replacement windows are made from materials that have the ability to keep the amount of heat transfer to a minimum. This reduction of heat transfer enables the windows to keep heat inside during winter and keep it outside during summer. A double glazed glass pack that has a PPG Intercept spacer or a foam Super Spacer in between its two pieces of glass can keep the transfer of heat to a minimum. The glass used on modern energy efficient replacement windows is treated with a low emissivity coating, which reflects heat back in the form of infrared light while still allowing visible light to pass through. Energy efficient window frames and sashes are also manufactured using material that’s intended to limit the amount of heat transfer. Vinyl is considered as one of the best materials when it comes to providing high levels of energy efficiency. In addition to keeping heat transfer to minimal levels, modern replacement windows are also designed to seal out air and water infiltration. For example, energy efficient double hung windows are made with sashes that close snugly into pocket headers and sills. The sashes of the windows are also designed to interlock with each other at the meeting rail. Vinyl sashes usually come with rubber seals and weather strips that further improve the windows’ sealing ability. Before, aluminum, vinyl, and wood windows were designed with frames that are mechanically connected through nails or screws. These types of joints were known to weaken up and create gaps that allow air and water in. Today’s windows have the vinyl in their frame and sash fused using heat which welds the seams together. This type of frame and sash design has the ability to withstand bend and flex movements from the house which means that it won’t loosen up over time and can remain effective in being a barrier against the natural elements. Both the design and production of replacement windows have come a long way over a short period of time. With the cost of making a home comfortable to live in continually rising, the answer to whether or not it’s wise to use energy efficient replacement windows is becoming easier to answer. In Austin, replacement windows are surely an easy decision with Zen Windows. Call SCOTT today and get your quote within five minutes and have your windows installed as soon as possible.