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Replacement Double Glazed Units Over time double glazed units (or sealed units as they are usually called) will break down. This typically happens when the insulating properties of the inert gas between the glass panes breaks down. It is essential to replace a damaged or broken window to ensure that your home is fully energy efficient and insulated. The task is simple and straightforward. Installation If the window was put in correctly, the new window should be able to fit comfortably and securely within the frame. If the new glazed panel is not the same size that your old one was you may need to adjust the 'packers' (usually blue or red plastic slips) in the frame. If you are unsure how to proceed, consult your installer or the manufacturer's instructions for guidance. A high-quality replacement double-glazed sealed unit will be manufactured to the highest standards and should fit in your frame with the least amount of hassle. But, even a tiny mistake can have a major impact on the performance of your window, and should be examined attentively. Modern double-glazed units are an excellent addition to any home. They are energy efficient and save you money. They utilize argon between the panes of glass to insulate and decrease the amount of heat that can escape from your home during cold winter. Sometimes, these units may develop issues with their seals. This is usually the case when moisture is introduced into the air space of the glass, causing condensation between the panes. Moisture in the windows' cavity is not just unsightly, but also affects the efficiency and effectiveness of the glazed unit. Check for a fogginess or misty appearance in between the window panes. This is an indication that the seal between the two panes has broken and moisture is leaking in to your living space. The first thing you need to do is to take off the glazing beads around the window edges. This can be a little tricky and a bit messy, but it is worth the effort because it allows you to get access to the gasket that holds your glass in place. It is essential to take care when removing the beads so that they don't fall off. A little help from a friend can be helpful at this stage. After the beads have been removed, allow the sealed unit to drop slightly from the frame. With a helper hold it in position while you accurately measure the width, height and also the thickness. This is crucial because it determines the size of the wedge gasket you need to cut for the new double glazed sealed unit. Checking Double glazing units or sealed units as they are often referred to they can break down in time. This usually happens due to a breach in the seal that allows moisture and condensation to infiltrate the space between the panes. This affects how the window is able to keep out cold air, heat produced by the heating system within the home, and solar heat inside the window. Failing seals can also result in draughts being felt in the home. Double-glazed windows should be checked regularly for indications of failure. A misting or a haze of moisture in the glass is a strong sign that the seal has failed and a replacement should be put in place. If you do need to replace a sealed unit, it is crucial that the replacement unit is the right size to fit. The uPVC frames which the sealed unit is placed in are not tolerant of movement so even a few millimetres too big can affect the performance of the window. Consult a professional or the guide that is provided by the manufacturer to ensure you order the correct size. Place the new unit into the frame with the help of a friend. It is vital to make this move in a secure place because the glass is fragile and could fall out and break. After the sealed unit is fixed to the frame, reconnect any packers at the bottom of the frame, and then put the glazing beads into their original position. Once you've completed this take the window for an extensive visual inspection to make sure there are no gaps, and that it is not misaligned. You may also need to apply a bit of sealant to the perimeter edge of the frame to stop it from moving in the future. It is recommended to re-check the thickness of the glass unit. Double-glazed units come in various thicknesses. Making the wrong choice could have a negative effect on the value of your home. Sealing Double glazing is an excellent option to boost the efficiency of your home's heating system and enhance sound quality by reducing the transfer of sound. Over time, the seals on the glass can wear out resulting in condensation or drooping windows. In these cases replacement is needed. It's a good idea work with a double glazing expert who can help you select the best glass products, make precise measurements and ensure proper installation. The first thing to be done when replacing the sealed unit is to clean the frame. You can make use of an old paintbrush (4 inch is the best) to sweep the frame clean by removing dust and cobwebs which accumulate in the frame over time. It's a great idea to clean the seals that have been installed after the frame has been cleaned. It is the easiest way to remove the wedge gaskets from the friction joint by placing your fingers on the edge of the gasket and pulling it away. You should also take an outline of the length that you need for your new seals since it will be useful in cutting them to the required size. The installation of the sealed unit is straightforward once the frame and gaskets have been cleaned. It's a great idea to take off the beads (the UPVC frames clips that serve to hold the glasses) and measure them. This will ensure that the seal is constructed according to the correct dimensions and will not leave gaps around it. When the beads are back in place you can insert the first bead and move on to the next three. Be careful not to touch your sealed units for a long time afterward as the silicone sealant will require time to set and harden before you can use it again. I typically wait 6 hours before handling it, however the silicone sealant's time to set will differ. Finalization When the new double-glazed unit is secure within its frame and is sealed, it's time to seal and complete. This step is more than a physical conclusion to the project. It's an affirmation that your home is now ready to withstand the elements with its brand new secure guardian securely in place. The first step involves cleaning the frame and taking out any glazing beads strips, or other materials that were used to hold the old glass. Then, the frame is cleaned of dirt and sealants that have been used for years, as well as glazing tape, a process which also renews the timber or aluminium of the frame of the window. This is also the time to make any small repairs using wood filler and sanding, in the event that it is necessary. For more serious damage you must seek out a professional. The spacer tubes are then be filled with desiccants in order to absorb any moisture that may have been trapped between the two panes in the process of manufacturing or over time. This is a standard procedure for warm edge sealed units. Thermoseal Group stocks desiccants as well as manual and automatic desiccant dispensing machines. After the spacers have been filled, the glass is sealed with a high performance silicone designed to withstand Australia's harsh environment. This sealant creates an airtight seal that is extremely flexible and durable that can expand and contract without breaking. It is essential to choose the right thickness, as any gaps could affect thermal performance. If you're not sure of the proper thickness seek advice from an expert or a manufacturer's guide. Replacement rubber gutter seals is to add an additional sealant, usually polyisobutylene (PIB) or similar products. This is applied along the outside edges of frames to create a secondary seal. It is able to repel moisture and prevent air infiltration, thus increasing energy efficiency. The frame is then finished with an aluminum cladding. This protective coating is able to withstand the weather and keep your frame looking brand new for a long time. It is a wise investment to ensure the longevity and aesthetics of your frames, especially if you have federation or period homes that have timber frames that are susceptible to rot.