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Benefits of Replacement Double Glazed Units Double-glazed windows (or sealed units) can become misted or 'blown' when the seals fail and cause the loss of heat and expensive heating bills. Replacing the window can restore an airtight seal that reduces condensation and drafts. The first step is to select a sealant with a high-quality sealant that is able to stand up to thermal expansion and contraction. 1. Preparation Double glazing, or sealed units, as they are often referred to, enhance the efficiency of your home and make it safer by providing a solid security barrier against intruders. They also serve as a deterrent against condensation and cold air draughts that could otherwise enter your home. Over time, however double glazing may fail and the gas that keeps your home at a comfortable temperature can be released. If this happens, your draughty home won't be as energy efficient and it will cost you more to heat in the winter months and cool in the summer. To avoid this from happening, a replacement frame will have to be installed. It's an easy task that most DIYers can do, but it's important that you prepare your frame in a way that prevents costly errors. First, take the glazing beads or sealing strips from the frame. This is a delicate process that requires patience and a steady hand, however, it's essential to remove them carefully so you don't harm the frame. This task is best carried out using a second set of hands, so you can complete it safely and comfortably. After you have removed the old glass, clean the frame thoroughly to remove any dust or residue. This will create a clean and smooth surface for the new installation and help make sure that the sealant adheres to it with ease. You should also check the frame for any damage that needs repair. Small damage can be fixed by using wood filler or sanding, however, major repairs may require the assistance of a professional. After cleaning the frame, you can prepare it to receive your new sealed double-glazed unit. There are several methods to achieve this dependent on the style of your window. If your window's design incorporates glazing tape wrap it around the frame edge to create an insulated surface for the glass. If you have an edge warmer, you will also need a desiccant-filled spacer tube. This absorbs moisture that may have been caught during the manufacturing process, and then found its way into the window over time. 2. Removal Double glazed units, or sealed units, as they're called, may break down over time. In this case the inert gases that are in the space between the glass panes could escape. This could have an impact on the regulation of temperature and energy efficiency of your home. It is therefore essential to replace the sealed unit in the event of this happening. This isn't just a practical requirement however, it can also increase the security of your home. The use of toughened safety glass and laminated glazing makes it more difficult for burglars to gain entry into your property. It is important to carefully remove the old sealed unit from the frame. This is a little tricky because the glass can be quite heavy. It's best to have a second pair of hands ready to help. It's also important to lift the glass slowly and smoothly to avoid any damage or breakage. Once the sealed unit is removed, it's a good idea give the window frame a thorough cleaning with an old paint brush (4 inches is the ideal size). This will remove any dust or debris that may have accumulated within the frames over time. Examine the frame for damage. Small damage can be fixed with wood filler and sanding. The more serious damage could require professional repair. Before double glazed window seal repair place the new glass in its spot, it is important to accurately measure its dimensions. This can be accomplished by a professional, but should you feel comfortable enough to do it yourself, this can be achieved using an edge straight and a ruler. Once you've gotten the measurements you can then begin to fit the glazing beads. This is a delicate process since the glass could easily fall out and smash therefore it is crucial to do this job done correctly. After carefully fitting your glass beads, it's important that the glass is flush with the frame. This is to avoid any moisture that can lead to condensation between the panes. 3. Installation Double-glazed windows are known as sealed units. They offer a number of advantages to homeowners, such as increased efficiency in energy use. The spacer bar is stuffed with desiccants that absorb moisture to prevent condensation between the glass panes. These features keep the house warm in winter and cool in summer by reducing cooling and heating bills and creating a comfortable living space. Once the new double glazed unit is fitted it can be attached to the frame using glazing beads or sealant. This is an essential step that makes sure the window is sealed and is ready to stand up to Australia's diverse weather conditions, from Tasmania's bracing winds to Queensland's scorching heat. Taking care not to damage the new unit, it's important to install the beads and sealant with precision. It is also important to use high-quality sealant which can withstand thermal expansion and contraction, but not become fragile. After the installation is complete it's a good idea to inspect the unit for any signs of problems. The most frequent signs that the sealed unit has been blown by condensation between the glass panes or the glass appearing cloudy. If you notice any of these signs it's a good idea replace the double glazed unit. While double glazed units last a long time, over the years they will eventually begin to fail. This can occur for a variety of reasons depending on the quality and care of the unit. Some homeowners are not certain of how to replace double-glazed units. The task isn't as difficult as it might appear. It is possible to complete with the proper tools. Follow these steps to replace the double-glazed unit. This will improve your home's energy efficiency and comfort as well as its aesthetics. 4. Checking Double glazing can be a fantastic barrier between your home and the elements, allowing you to control the temperature in your living space. This is especially crucial in winter, when blown up or misted-up sealed units may let heat leak out and raise energy costs. Sealing them up with a new seal will help keep the heat in and keep your energy costs down. The final step is to examine the sealed unit for signs of wear or damage. You should also ensure the window is secure in the frame and is aligned with the structure. Make sure you take the time to inspect the frame and glass as any mistakes can be costly. If the seal is broken or the desiccant level is low, it is recommended to replace the entire unit, not just the damaged panes. Double glazed leaks or damaged windows will let heat escape into the environment causing your heating system to perform harder to maintain the same temperature. In addition to this an unfinished sealed unit can allow moisture into the insulating air or gas-filled void between the glass panes which results in condensation. This is a challenging step, as the unit has been steam-steamed and must be removed with care in order to avoid any damage. When removing the unit, it's essential to place yourself in a firmly and have a second pair of hands ready to help you in the removal process. It is best to employ a professional if you have large units or if the unit is fragile. Utilizing a tape measure, you should accurately record the width, height and thickness of the existing unit. This will help in the design of your replacement and ensure an unbroken fit. It is recommended to remove the beads that are holding the existing unit to the frame prior to taking measurements. You can employ a small chisel, or a an abrasive screwdriver that has a wide blade to remove the bead and prise it from its place within the frame. After the beads are removed, you can measure the length, width and height of the old glass unit to ensure your replacement is of the same dimensions.