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Replacement Double Glazed Units Over time double glazed units (or sealed units as they are commonly known) may break down. This happens when the insulating properties of inert gases that are a part of the glass panes are broken down. When a window has broken down, it is essential to replace it to ensure that your home is properly insulated and energy efficient. The task is easy and straightforward to do at home. Installation If the window is installed correctly the new unit will fit firmly in place and will fit comfortably within the frame. If the new window is not the same size as your old one, you may have to adjust the 'packers' (usually red or bluish plastic slips) inside the frame. If you're unsure of how to proceed, consult your installer or the instructions of the manufacturer for advice. A high-quality replacement double-glazed window is manufactured to the highest standards and should fit your frame with ease. A tiny mistake can have a huge impact on the performance of your window. replacement seals for upvc windows -glazed units are an excellent addition to any home. They are energy efficient and save you money. They apply argon between the panes glass to keep them warm and cut down on the amount of heat that escapes from your home during cold winter. However, sometimes these units can fail or have issues with their seals. This happens when moisture gets into the air cavity and creates condensation. The condensation in your window is not just unsightly however it also decreases the effectiveness of the glazed unit. Look for a fogginess or misty look between your window panes. This indicates that the seal between two panes has broken and moisture is leaking into your living space. The first thing you need to do is to take off the glass beads that surround the edges of your window. This can be tricky and a bit messy, but it's worth the effort as it allows you to access the gasket that holds your glass in place. You'll need to take off the beads with care so that they don't break and it is often a good idea to seek help at this point. After the beads are removed, allow the sealed unit to drop slightly out of the frame and with an assistant, hold it in position while you accurately measure the width, height and also the thickness. This information is essential as it will help you determine the size wedge gasket you will need to cut for your brand new double glazed sealed units. Checking Double glazing units or sealed units, as they are often referred to they can break down over time. This is usually due a leak in the seal, which lets condensation and moisture into the space between the panes. This will affect how well the window can keep out cold air, heat generated by the heating system inside the home and solar gain inside. Failing seals can also cause draughts within the home. It is important to check regularly your double-glazed windows for indications of failure. The presence of mist or moisture between the glass is an indicator that the seal has failed and a replacement is required. It is crucial to replace the sealed unit with the proper size. The uPVC frames in which the sealed unit is positioned have a tiny tolerance for movement, meaning that even a few millimetres of movement can impact the performance of the windows. To ensure that you're getting the correct size, it is best to consult a professional or the manufacturer's manual. With the help of a person who holds the new unit gently place it in the frame. This should be done in a safe location as the glass could break if it falls out. After the sealed unit has been fixed to the frame, reattach any packers on the bottom of frame and then reinstall the glazing beads into their original positions. Once you've completed this, give the window an inspection thoroughly to ensure that there aren't any gaps and that it is not misaligned. It is also possible to apply a small amount of sealant to the perimeter edge of the frame in order to prevent it from moving in the future. It is recommended to re-check the thickness the glass unit. Double glazed units come in different thicknesses. If you choose the wrong one, it could have a negative effect on the value of your home. Sealing Double glazing can improve the thermal efficiency of your home, and offer better acoustics. Over time, the seals on the glass may get worn out, leading to windows that are drooping or misty. In these cases it is necessary to replace the glass. It is recommended to collaborate with an experienced double glazing contractor who can help you choose the right glass products as well as ensure precise measurements and ensure that the installation is done correctly. The first thing to be done when replacing a sealed unit is to clean the frame. Use an old paintbrush (4 inches is the ideal size) to scrub the frame, getting rid of dust that has built up over time. After the frame has been cleaned, it's a good idea to give the seals that are new a thorough clean too. The easiest way to do this is to pull out the Wedge gaskets by placing your fingers on the edge and pulling it out at the point where it is in contact with the friction joint. Take note of the length of time you'll need the new seals. This will assist when cutting them. Installation of the sealed unit is simple after the gaskets and frame have been cleaned. To get the best results when doing this, it's recommended to remove the beads (the UPVC frame clips that hold the glass) and then measure these. This will ensure that the seal is constructed to the right size and will not leave any gaps around it. Once the beads are back in their place, you can insert the top bead, and then move on to the next three. Be careful not to touch your sealed units for a long time afterward as the silicone sealant needs time to set and harden before you can use it again. I usually leave it for about 6 hours prior to handling but this will depend on the silicone sealant's setting time. Finalization Once the new double glazed unit is securely seated within its frame It's time to seal and finish. This is more than just a physical closure to the work; it's an assurance that your house is ready to weather the elements with a new, secure guardian safely in the right place. The first step is to clean the frame, carefully removing any glazing strips or beads that bonded the old glass. The frame is then free of dirt and sealants that have been used for years, as well as glazing tape, a process that also rejuvenates the timber or aluminium of the frame of the window. It is also a good time to look over any damages and make small repairs, by using wood filler or sanding if needed. If you have a major issue you must consult an expert. The tubes for the spacer are filled with desiccants in order to absorb any moisture that might be trapped between the two panes of glass during manufacture or over time. This is a standard practice for a warm edge seal. Thermoseal Group stocks desiccants as well as manual and automated desiccant dispensing machines. After the spacers are filled with glass, it is sealed with a high-performance silicone that is designed to withstand Australia's harsh environment. The sealant creates an airtight barrier that is extremely flexible and durable and can expand and contract without breaking. It is essential to choose the right thickness, as any gaps could affect the thermal performance. Ask a professional for advice or refer to the manufacturer's guide in case you're not sure about the right thickness for your. The last step is to apply an additional sealant, usually polyisobutylene (PIB) or a similar product. It's applied to the edges of the frame's exterior, where it creates a secondary seal capable of repelling moisture and stop air penetration and improve energy efficiency. The frame is then finished with an aluminum cladding. This is a protective coating that is able to withstand the elements, keeping your frame looking new for many years to be. It's a smart investment in the long-term durability of your home's frame, particularly in the case of historic homes or federation homes, where wooden frames are susceptible to decay and rot.