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Replacement Double Glazed Units Over time, double glazed units (or sealed units as they are usually known) will break down. This happens when the insulating properties of gasses that insulate the glass panes break down. It's important to replace a broken window to ensure that your home is fully energy efficient and well-insulated. Read More At this website is fairly easy and straightforward. Installation If the window is installed correctly, the new unit will fit snugly and will fit comfortably within the frame. If the new glazed window is not the same thickness as the old one you may need to adjust the 'packers' (usually red or bluish plastic slips) in the frame. If you're unsure of how to proceed, consult your installer or the manufacturer's instructions for guidance. A high-quality replacement double-glazed sealed unit is made to exacting standards and should fit your frame with minimal fuss. But, even a tiny mistake could have a huge impact on the performance of your window, and should be examined attentively. Modern double-glazed units can be a great addition to any home. They are energy efficient and save you money. They utilize of argon in between the panes glass to insulate and cut down on the amount of heat that escapes from your home during cold winter. Sometimes, these units may develop issues with their seals. This typically happens when moisture is introduced into the air space of the glass and creates condensation between the panes. Moisture in your window cavity is not only unsightly, but it also reduces the effectiveness of the glazed unit. You can spot a cloudy or misty look between the window panes. This is a sign that the seal between the two panes has been broken and water is flowing in to your living space. The first step is to remove the glass beads that surround the window edges. It can be difficult and messy, but it is worth it as you will have access to the gasket for wedges that holds your glass in position. It is crucial to remove the beads carefully so that they don't fall off. Asking for help can be beneficial at this point. Once the beads are removed allow the sealed unit to fall back slightly out of the frame. Then, using a helper hold it in place while you measure it accurately width, height and also the thickness. This information is essential because it determines the size of the wedge gasket must be cut to accommodate the new double glazed sealed unit. Checking Double glazing units, or sealed units as they are commonly called, can degrade over time. This is usually because of a crack in the seal, which allows moisture and condensation to enter the space between the panes. This will affect how well the window is able to keep out cold air, heat generated by the heating system inside the home, and solar heat inside the window. A faulty seal can also cause draughts to be felt within the home. Double-glazed windows should be examined regularly for indications of failure. The presence of mist or moisture between the glass is a clear indicator that the seal has failed and a replacement unit should be installed. It is essential to replace the sealed unit with the proper size. The uPVC frames on which the sealed unit is installed have a tiny tolerance for movement, meaning that even a few millimetres can impact the performance of the windows. Get advice from a professional or follow 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 do this in a secure spot as the glass is fragile and may fall out and break. Once the sealed unit has been secured to the frame reattach any packers on the bottom of frame and then put the glass beads in their original position. After you have completed this, give the whole window a visual inspection to ensure there are no gaps or areas of misalignment that could compromise its performance. You may have to add some sealant around the edges of the frame to stop it from moving. It is also a good idea to check the thickness of the glass unit. Double-glazed units are available in different thicknesses. If you choose the wrong one, it can have a negative impact on the u value of your home. Sealing Double glazing is a fantastic method to increase the efficiency of your home's heating system and improve audio quality by cutting down on the transfer of sound. 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 a good idea to consult an experienced double glazing contractor who can help choose the right glass products as well as ensure precise measurements and ensure that the installation is done correctly. If you are replacing a sealed unit the first thing to do is clean the frame. Make use of an old paintbrush (4 inches is the ideal size) to scrub the frame, getting rid of dust that has accumulated over time. When the frame is clean, it's a good idea give the seals that are new a thorough clean too. The easiest method for doing 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. It is also important to make an outline of the length that you need to make your new seals, as it will be helpful when cutting them to size. Once the gaskets are cleaned and the frame is clean, it's time to install the sealed unit. It's a great idea to remove the beads (the UPVC frames clips that are used 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 top bead and then work your way round to the other three. After sealing the units, you must not contact them for several hours because the silicone sealant needs to set and harden. I usually let it sit for about 6 hours prior handling but this will vary based on your silicone sealant's set times. Finishing Once the new double glazed unit is securely seated within its frame, it's time to seal and finish. This step is not only a physical finalization of the project but also a statement that your home is prepared to withstand the elements now that its new safe guardian is installed. The first step is cleaning the frame and taking out any glazing beads, strips or other materials that were used to fix the old glass. The frame is then scrubbed clean of dirt, sealant or glazing tape. This process also rejuvenates the aluminium or timber frame. This is also the moment to make any small repairs with wood filler and sanding, in the event that it is necessary. For more serious damage, you should seek out a professional. The spacer tubes are then be filled with desiccants in order to absorb any moisture that might be trapped between the two panes in the process of manufacturing or over time. This is the standard procedure for warm edge sealed unit. Thermoseal Group stocks a range of desiccants as well as manual or automated dispensers for desiccant. After the spacers are filled, the glass is sealed with a highly-performing silicone designed to withstand the harsh conditions of Australia's climate. The sealant creates a barrier that's strong and flexible, able to expand and contract without becoming fragile or breaking. It's important to use the correct thickness, since any gaps could impact the thermal performance. If you're not sure of the correct thickness to use seek advice from an expert or a manufacturer's guide. The final step is adding secondary sealant. This is usually polyisobutylene or a similar material. It is applied to the outside edges of frames to create an additional seal. It can repel moisture and block air infiltration, improving the efficiency of energy. The frame is then adorned with an aluminum cladding. This is a coating that is able to withstand the elements, and keep your frame looking new for many years to come. It is a wise investment to ensure the longevity and aesthetics of your frames, especially if you have federation or period style homes with timber frames that are prone to decay.