Replacement Double Glazed Units
Over time double glazed units (or sealed units as they are often known) can break down. This happens when the insulating properties of inert gases between the glass panes are broken down.
If a window has been damaged down it's important to replace it to ensure your home is well-insulated and energy efficient. The process 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 unit isn't the same thickness as the older one then you may need to alter the 'packers' (usually red or blue slips of plastic) in the frame to ensure that it is properly placed. If you're unsure of how to do this then consult your installer or the manufacturer's instructions for guidance.
A high-quality replacement double-glazed sealed unit is constructed to exacting standards, and should fit into your frame with no hassle. A small mistake can have a major impact on the performance of your window, and should be examined attentively.
Modern double-glazed units are a fantastic addition to any home. They are energy efficient and can save you money. They are constructed with the argon gas between the panes in order to insulate and reduce the amount of heat that can escape your property during cold weather.
Sometimes, these units develop problems with their seals. This is usually the case when moisture gets into the air space of the glass and creates condensation between the panes. The condensation in your window is not only unsightly but also affects the efficiency of the glass unit.
Look for a fogginess or a misty appearance between the window panes. This is a sign that the seal between the two panes of glass is broken and water is entering your living spaces.
The first step to take is to remove the glazing beads from around the edges of your window. It's tricky and messy, but it's worth the effort because you will be able to access the wedge gasket which holds your glass in position. It is necessary to remove the beads with care so that they do not break, and it's usually an excellent idea to ask for assistance at this stage. After the beads have been removed, allow the sealed unit to slide a bit out of the frame. With the help of a person, hold it in place while you take measurements of its size, height and width. This is crucial because it will determine the size wedge gasket you need to cut for your newly double glazed sealed units.
Checking
Double glazing units or sealed units as they are commonly called, can degrade over time. This is usually due to leaks in the seal that allows moisture and condensation into the space between the panes. This affects how the window can keep out cold air, heat generated by the heating system within the home and solar gain inside the window.
Seal failure can also cause draughts within the home. Double glazed windows should be inspected frequently for signs of failure. Moisture or misting in between the glass is a clear indicator that the seal has failed and a replacement should be installed.
It is essential to replace the sealed unit with the correct size. The uPVC frames that the sealed unit sits in have a very limited tolerance for moving, so even tiny millimetres of excess can have an impact on the performance of the window. Talk to a professional or consult the guidelines provided by the manufacturer to ensure you order the correct size.
Slide the new unit into the frame with the assistance of a partner. It is essential that you place it in a secure spot since the glass is fragile and may be thrown out and break. After the sealed unit has been fixed to the frame, attach any packers that are on the bottom of the frame and then replace the glazing beads into their original position. After you've completed this make sure you give the window an inspection thoroughly to ensure there are no gaps, and that it isn't misaligned.
www.repairmywindowsanddoors.co.uk may need to add a small amount of sealant around the perimeter of the frame in order to prevent it from moving. It is recommended to re-check the thickness of the glass unit. Double-glazed units come in various thicknesses. Making the wrong choice can have a negative impact on the u value of your home.
Sealing
Double glazing is a fantastic option to boost the efficiency of your home's heating system and provide improved sound quality by reducing the transfer of sound. However, over time, the glass's seals can be damaged, resulting in misty windows and a decrease in performance. In these instances it is necessary to replace the glass. It is recommended for you to work with an experienced double glazing contractor who can assist you in selecting the best glass products, ensure accurate measurements, and ensure proper installation.
The first thing to be done when replacing the sealed unit is to clean the frame. You can use an old paint brush (4 inch is ideal) to clean the frame to remove dust and cobwebs that will build up in the frame over time. It's a good idea to clean the new seals once the frame has been cleaned. It is the easiest way to remove gaskets for the wedge from the friction joint by placing your hands on the edge of the gasket and pulling it away. Make a note of the length of time you'll need your new seals. This will help when cutting them.
Installing the sealed unit is straightforward once the frame and gaskets have been cleaned. To get the best results from this it's a good idea 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 there are no gaps around it.
Once the beads are back in their place, you can insert the first bead and work your way round to the other three. You should be careful not to touch your sealed units for a few minutes afterward as the silicone sealant will need some time to set and become hard before you are able to handle it again. I typically wait 6 hours to handle it, but the sealant's time to set will differ.
Finalization
When the new double-glazed unit is snugly in place within its frame, it's time to seal and complete. This step is more than a physical conclusion to the project; it's an assurance that your house is now ready to withstand the elements with its brand new, secure guardian safely in its place.
The first step involves cleaning the frame and removing any glazing beads strips, or other materials used to fix the old glass. Then, the frame is 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. This is also the moment to make any small repairs using wood filler and sanding, if necessary. For major damage it is recommended to seek out a professional.
Next, the tubes for the spacer are filled with desiccants in order to absorb any moisture trapped between the two panes of glass during manufacture or over time. This is a common practice for a warm edge seal. Thermoseal Group stocks a range of desiccants and manual or automated dispensers for desiccant.
After the spacers have been filled with glass, the frame and glass are sealed using a high-performance silicon, specifically designed to withstand Australia's tough climate. The sealant creates a barrier that's both durable and flexible capable of expanding and contract without becoming brittle or breaking. It is essential to choose the correct thickness, as any gaps can impact the thermal performance. If you're not sure of the correct thickness to use you should consult a professional or manufacturer's guide.
The final step involves adding secondary sealant. It is typically polyisobutylene or another similar material. This is applied along the edges of frames to form an additional seal. It can repel moisture and block air infiltration, improving energy efficiency.
Then, the frame is coated with aluminum cladding. This is a coating that is able to withstand the elements, and keep your frame looking new for years to be. This is a smart investment to ensure the durability and beauty of your home's frames, especially if you have federation or period style homes with timber frames that are prone to decay.