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Replacement Double Glazed Units

Over time, double-glazed units (or sealed units as they are commonly called) can break down. This happens when the insulating qualities of the gasses that insulate the glass panes are broken down.

It's important to replace a damaged or broken window to ensure that your home is energy efficient and well-insulated. Fortunately the task is relatively easy and straightforward to do at home.

Installation

If the window is installed correctly the new unit will fit snugly and sit comfortably inside the frame. If the new window isn't the same thickness as the old one it may be necessary to adjust the 'packers (usually blue or red plastic slips) within the frame. If you're unsure of what to do, consult your installer or the manufacturer's instructions for guidance.

A high-quality Replacement rubber seals for double Glazed windows double glazed seal will be manufactured to the highest standards and will fit into your frame with a minimum of hassle. But, even a tiny mistake can have a major impact on the performance of your window, and should be examined carefully.

Modern double-glazed units can be a great addition to any home. They are energy efficient and can save you money. They apply of argon in between the panes glass to insulate, and reduce the amount heat that escapes from your home during cold weather.

However, in some cases, these units may break down or develop problems with their seals. This happens when moisture gets into the air cavity and causes condensation. Moisture in your window cavity is not just unsightly but also affects the effectiveness of the glazed unit.

Check for a fogginess or a misty appearance between your window seal replacement panes. This is an indication that the seal between the two panes has broken and moisture is leaking into your living space.

The first step is to remove the glazing beads from around the edges of your window. It can be complicated and messy, but it is worth the effort because it allows you to access the wedge gasket that holds your glass in place. You will need to remove the beads with care so that they don't break and it is often an excellent idea to seek assistance at this point. Once the beads have been removed and the sealed unit is free of them, allow it to slide a bit out of the frame. With the help of a person holding it in place while you accurately take measurements of its size, height and width. This is crucial as it will determine what size wedge gasket to cut for your new double glazed sealed units.

Checking

Double glazing units, or sealed units as they are often referred to, can fail in time. This usually happens due to a break in the seal which allows moisture and condensation to enter the space between the panes. This affects how the window is able to keep out cold air, heat produced by the heating system in the home and solar gain inside the window.

Failure of the seal can cause draughts to be felt in the home. Double glazed windows should be examined often for indications of failure. If you see water or mist forming between the glass, this is an indication that the seal is not working and a replacement unit must be installed.

It is important that you replace the sealed unit with the proper size. The uPVC frames that the sealed unit sits in are not tolerant of moving, so even a few millimetres too big could affect the performance of the window. To be certain that you are ordering the correct size, it is best to seek advice from a professional or the manufacturer's guide.

With the help of a person who holds the new unit gently slide it into place in the frame. This must be done in a safe area as the glass may break if it falls out. Once the sealed unit is fixed to 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 whole window a visual inspection to ensure there are no gaps or areas of misalignment that could impact its performance.

It may be necessary to apply a small amount of sealant around the perimeter edge of the frame in order to prevent it from moving in the future. Re-checking the thickness of the unit is also recommended. Double glazed units come in different thicknesses. Using the wrong one can have a negative impact on the u value of your home.

Sealing

Double glazing is an excellent option to boost the efficiency of your home's heating system and improve audio quality by cutting down on the transfer of sound. However, over time the glass's seals can get worn out, leading to misty windows and a decrease in performance. In these cases replacement is required. It's a good idea to consult a double-glazing expert who can help you choose the best glass products, make precise measurements, and ensure proper installation.

The first thing to be done when replacing sealed units a sealed unit is to clean the frame. You can make use of an old paint brush (4 inch is the best) to sweep the frame out, removing dust and cobwebs which accumulate in the frame over time. Once the frame is clean it's a good idea to give the seals that are new a thorough clean too. The most efficient method to do this is to pull out the gaskets on the Wedge by placing your fingers on the edge and then pulling it out at the point where it overlaps with the friction joint. Note down how long you need the new seals. This will assist when cutting them.

Once the gaskets are cleaned and the frame is cleaned it's time for the sealed unit. To ensure the best results when doing this, it's best to cut off the beads (the UPVC frame clips that are used to hold the glass) and then measure these. This will ensure that the seal is built to the correct dimensions and there are no gaps around it.

After the beads have been put back in, you can begin with the top one and work your way down to the others. Be careful not to touch your sealed units for a few minutes afterward, as the silicone sealant needs time to set and become hard before you can use it again. I typically leave it for about 6 hours before handling but this will differ based on your silicone sealant's setting time.

Finishing

After the double-glazed unit is securely seated within its frame and is sealed, it's time to seal and complete. This step is not only an aesthetic finish to the project, it also signifies that your home is prepared to withstand the elements after the new, secure guardian is in place.

The first step is to clean the frame, by carefully removing any glazing strips or beads that bonded the old glass. The frame is clean of dirt and sealants that have been used for years, as well as glazing tape, a process that also revitalizes the wood or aluminium of the window's frame. It's also a good opportunity to look over any damaged areas and make minor repairs, by using wood filler or sanding as required. Damages that are severe should be reported to an expert for repair.

The spacer tubes are filled with desiccants to absorb any moisture that may be trapped in-between the two glass panes during manufacture or over time. This is a standard procedure for warm edge sealed units. Thermoseal Group stocks a range of desiccants, as well as manual and automatic desiccant dispensers.

After the spacers are filled with glass, it is sealed with a high performance silicone that is designed to withstand the harsh conditions of Australia's climate. This sealant forms an airtight barrier that's extremely flexible and durable that can expand and contract without breaking. It is essential to choose the right thickness since any gaps could affect the thermal performance. If you're not sure about the right thickness to use seek advice from an expert or a manufacturer's guide.

The last step is to apply secondary sealant, typically polyisobutylene (PIB) or an equivalent product. This is applied along the edges of frames to create an additional bifold door seal replacement. It can repel moisture and prevent air infiltration, thus increasing the efficiency of energy.

The frame is coated with aluminum cladding. This is a protective coating that is resistant to the elements, and keep your frame looking brand new for many years to be. This is a smart investment for the long-term integrity and beauty of your home's frames, especially if you have federation or period homes with wooden frames that are prone to decay.