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Replacement Double Glazed Units Over time, double glazed units (or sealed units as they are commonly called) will break down. This usually happens because the insulating properties in the inert gas between glass panes degrade. If a window has fallen down, it's crucial to replace it to ensure your home is well-insulated and energy efficient. The task is simple and easy. Installation If the window was put in correctly, the new unit should fit comfortably and firmly within the frame. If the new window is not the same size that your old one was, you may have to adjust the 'packers (usually blue or red plastic slips) in the frame. If you are unsure what to do, consult your installer or the instructions of the manufacturer for advice. A good replacement double glazed sealed unit will be made to exacting standards and should fit into your frame with the least amount of fuss. But, even a tiny mistake could have a huge impact on the performance of your window, and must be inspected carefully. Modern double-glazed units are a great energy efficient addition to any home. They are constructed with the argon gas between the panes to insulate and reduce the amount of heat that will escape from your home during cold winter months. Sometimes, these units may have issues with their seals. This typically happens when moisture is introduced into the air space of the glass, causing condensation between the panes. The presence of moisture in your window is not just unsightly, but it also reduces the effectiveness of the glazed unit. Check for a fogginess or a misty appearance between the window panes. This is a sign that the seal between the two panes of glass has broken down and moisture is leaking into your living spaces. The first thing to do is to remove the glass beads that surround the edges of the window. This can be a little tricky and a bit messy, but it is worth the effort as it lets you access the wedge gasket which keeps your glass in place. You will need to remove the beads with care so that they do not break and it is often a good idea to seek help at this point. Once the beads are removed, allow the sealed unit to slide a bit out of the frame. With window sealant repair near me www.repairmywindowsanddoors.co.uk of a person to hold it in place while you measure its size, height and width. This information is essential because it will determine the dimensions of the wedge gasket that must be cut to accommodate the new double glazed sealed unit. Checking Double glazing units or sealed units as they are commonly called, may break down over time. This is usually due to a break in the seal that allows moisture and condensation to enter the space between the panes. This can affect the capacity of the window to keep cold air out, and warm generated by the home's heating in and solar gain from the sun inside. A seal failure can cause draughts to be felt in the home. Double-glazed windows should be examined frequently for signs of failure. The presence of mist or moisture between the glass is a strong sign that the seal has failed and a replacement is required. It is important that you replace the sealed unit with the proper size. The uPVC frames which the sealed unit is placed in have little tolerance for movement so even just a few millimetres over can have an impact on the performance of the window. To be certain that you are ordering the correct size, it is recommended to speak with a professional or the manufacturer's manual. With a helper holding the new unit, gently place it in the frame. It is crucial to make this move in a secure place as the glass is fragile and may be thrown out and break. After the sealed unit is secured in the frame, reconnect any packers at the bottom of the frame, and then put the glazing beads back into their original positions. After you have completed this, give the entire window a thorough examination to make sure there aren't any gaps or misalignments that could compromise its performance. You may need to add some sealant around the frame's perimeter to prevent it from moving. Checking the thickness of the unit is an excellent thing to do. This is important as double glazed units are available in various thicknesses and if you choose the wrong one, it could affect the u-value of your home's insulation. Sealing Double glazing is an excellent method to increase your home's thermal efficiency as well as enhance audio quality by decreasing the transfer of sound. However, over time, the glass's seals may wear down resulting in misted windows and a decrease in performance. In these cases it is necessary to replace the glass. It's a good idea to employ a double glazing professional who can help you select the best glass products, take accurate measurements and ensure proper installation. If you are replacing a sealed unit, the first thing you need to do is clean the frame. You can make use of an old paintbrush (4 inches is the ideal size) to sweep the frame clean, removing dust and cobwebs that will build up within the frame over time. Once the frame is clean it's a good idea give the new seals a thorough clean too. It is the easiest way to remove the wedge gaskets from the friction joint by placing your fingers along the edge of the gasket and pulling it away. Take note of the time frame you'll need to use the new seals. This will assist when cutting them. After the gaskets have been cleaned and the frame is clean, it's time to put in the sealed unit. It's a good idea take off the beads (the UPVC frames clips that serve to hold the glasses) and then measure the size of them. This will ensure that the seal is made according to the correct dimensions and will not leave any gaps around it. After the beads have been reinserted, you can start with the top one and work your way to the lower ones. You should be careful not to touch the sealed units for a while following the sealing process as the silicone needs time to set and harden before you can use it again. I usually let it sit for about 6 hours before handling, but this can depend on the silicone sealant's setting times. Finishing Finishing the project and sealing it is now necessary once the double-glazed unit has been securely installed within its frame. This is more than a physical closure to the project; it's an assurance that your house is now ready to withstand the elements with its new, secure guardian safely in its place. The first step is to clean the frame taking care to remove any glazing strips or beads that held the old glass. The frame is then scrubbed clean of dirt, old sealant, and glazing tape. This process also rejuvenates either the timber frame or aluminium frame. This is also the time to make any minor repairs using wood filler and sanding, if needed. Major damage should be referred to a professional to repair. The tubes that are used as spacers are filled with desiccants to absorb any moisture that may be trapped between the two glass panes during manufacture or over time. This is a standard practice for a warm edge sealed unit. Thermoseal Group stocks a range of desiccants, as well as manual and automatic desiccant dispensers. After the spacers have been filled with glass, it is sealed with a high-performance silicone that is designed to withstand Australia's harsh climate. This sealant creates an airtight barrier that is both flexible and durable, and can expand and contract without breaking. It is important to use the correct thickness as any gaps could affect thermal performance. If you're not sure about the correct thickness to use seek advice from an expert or the manufacturer's guidelines. The final step is to add secondary sealant. This is usually polyisobutylene, or a similar substance. This is applied along the edges of frames to form an additional seal. It is able to 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, keeping your frame looking like new for years to come. This is a wise investment to ensure the longevity and beauty of your home's frames, especially if you have federation or period homes with timber frames that are susceptible to decay.