Five Things Everybody Gets Wrong About Replacement Double Glazing Sealed Units
Replacement Double Glazed Units
Over time double glazed units (or sealed unit repairs units as they are commonly called) can break down. This occurs when the insulating properties of the inert gases between the glass panes degrade.
When a window has broken down, it's crucial to replace the window to ensure that your home is fully insulated and energy efficient. Luckily, the task is simple and easy to complete at home.
Installation
If the window was installed correctly, the new window will fit snugly and securely inside the frame. If the new glazed panel isn't the same thickness as your old one it may be necessary to adjust the 'packers (usually blue or red plastic slips) within the frame. If you're unsure of how to do this then consult your installer or the instructions of the manufacturer for advice.
A good quality replacement double glazing replacement sealed units-glazed sealed unit will be made to exacting standards and will fit into your frame with the least amount of fuss. A small mistake could have a huge impact on the performance of your window, and should therefore be checked with care.
Modern double-glazed units are a fantastic addition to any home. They are energy efficient and can save you money. They use an argon gas layer between the panes in order to insulate and thereby reduce the amount of heat that will escape from your home during cold weather.
However, there are times when these units break down or develop problems with their seals. This typically happens when moisture gets into the air cavity of the glass and creates condensation between the panes. Moisture in the windows' cavity is not only unsightly but also reduces the efficiency and effectiveness of the glazed unit.
Look for a fogginess or misty look between the window panes. This is a sign that the door seal repairs between the two glass panes has broken down and water is entering your living spaces.
The first thing to do is remove the glass beads that surround the window edges. This can be a little complicated and messy but is well worth the effort since it lets you access the gasket that keeps your glass in place. It is crucial to remove the beads with care so that they don't fall off. Asking for help can be beneficial at this stage. After the beads have been removed then allow the sealed unit a little to fall out of the frame. With the help of a person, hold it in place while you accurately determine its size, height and width. This is crucial because it will determine the size wedge gasket you will need to cut for your new double glazed sealed units.
Checking
Double glazing units or sealed units as they are often referred to they can break down in time. This normally occurs due to a break in the seal, which allows condensation and moisture to infiltrate the space between the panes. This can affect the way the window is able to block out cold air, heat generated by the heating system inside the home and solar gain inside.
The failure of seals can cause draughts to be felt within the home. Double-glazed windows must be inspected regularly for indications of failure. If you see water or misting between the glass, it is an indication that the seal is failing and a replacement unit must be installed.
It is essential to replace the sealed unit with the correct size. The uPVC frames that the sealed unit sits in are not tolerant of moving, so even just a few millimetres over can have an impact on the performance of the window. To be certain that you're ordering the correct size, it is recommended to speak with a professional or the manufacturer's manual.
Slide the new unit into the frame with the assistance of a partner. It is essential that you make this move in a secure spot since the glass is fragile and could fall out and break. After the sealed unit is secured in the frame, reconnect any packers at the bottom of the frame, and then replace the glass beads in their original positions. Once you have done this give the entire window a thorough inspection to ensure there aren't any gaps or misalignments that could affect its performance.
It is also possible to apply a bit of sealant to the outer edge of the frame to stop it from moving in the future. Re-checking the thickness of the unit is recommended. Double-glazed units come in various thicknesses. Making the wrong choice could have a negative effect on the value of your home.
Sealing
Double glazing can increase the thermal efficiency of your home and also provide better acoustics. Over time the seals of the glass may be worn out, resulting in condensation or drooping windows. In these cases replacement is required. It's a good idea work with a double glazing professional who will assist you in selecting the most suitable glass products, make precise measurements and ensure proper installation.
The first thing to be done when replacing the sealed unit is to clean the frame. Make use of an old paintbrush (4 inches is the best) to scrub the frame, taking off dust that has built up over time. After the frame has been cleaned, it's a good idea give the new seals a thorough clean too. The easiest method for doing this is to lever out the Wedge gaskets by placing your fingers on the edge and then pulling it out at the point where it overlaps with the friction joint. You should also take an outline of the length that you need for your new seals as it will be useful when cutting them to size.
Installation of the sealed unit is easy after the gaskets and frame have been cleaned. To get the best results from this, it's recommended to cut off the beads (the UPVC frame clips that hold the glass) and then measure them. This will ensure that the seal is built according to the correct dimensions and won't leave any gaps around it.
After the beads have been put back in, you can begin with the top one and move down to the others. After sealing the units, you should not contact them for several hours as the silicone sealant has to harden and set. I typically wait around 6 hours to handle it, but the sealant's time to set will differ.
Finalization
Finishing the project and sealing it is now necessary once the new double-glazed unit is been snugly installed within its frame. This is more than a physical closure to the work; it's an assurance that your home is now ready to withstand the elements with its new, secure guardian safely in place.
The first step is to clean the frame, carefully removing any glazing strips or beads that held the old glass. The frame is then free of dust and sealants that have been used for years, as well as glazing tape, a procedure that also rejuvenates the timber or aluminium of the window's frame. This is also the time to make any minor repairs using wood filler and sanding, if necessary. Damages that are severe should be reported to an expert to repair.
The spacer tubes are then be filled with desiccants to take in any moisture that could have accumulated between the two panes during manufacturing or over time. This is a common practice for warm edge sealed units. Thermoseal Group stocks a range of desiccants, as well as manual and automated dispensers for desiccant.
After the spacers have been filled, the glass and frame are sealed using a high-performance silicon, specifically designed to withstand Australia's harsh climate. The sealant creates an airtight barrier that is extremely flexible and durable that can expand and contract without breaking. It's important to use the correct thickness, since any gaps could impact the thermal performance. Consult a professional or the manufacturer's guide for more information on the thickness to use.
The final step is to add secondary sealant, typically polyisobutylene (PIB) or an equivalent product. This is applied to the outside edges of the frame, where it creates a secondary door Seal repair that's able to repel moisture and prevent air penetration which can improve energy efficiency.
The frame is then adorned with an aluminum cladding. This protective coating is able to endure the elements and keep your frame looking fresh for many years. This is a wise investment to ensure the longevity and aesthetics of your frames, particularly if have federation or period homes with wooden frames that are prone to rot.
