How To Tell If You're Ready For Replacement Sealed Double Glazing Units
Replacing Double Glazed Units
Replacing double glazed units is a home improvement task which can significantly reduce heat loss, enhance insulation from noise and reduce heating bills. Modern coatings and argon/krypton filled units make them extremely energy efficient.
The new model, designed to exact measurements, awaits its time and requires care and precision. This is the moment when you stop time and puts everything in perspective.
Take the old unit out of the way
It is crucial to remove the old unit in order to ensure that your new double-glazed window is made to precise measurements. Make sure to clean the frame of any dust, dirt or old sealant and repair any damage that could be present. Repairs of minor amounts can be made by using wood filler or sanding however major damage could require professional repair.
After the glass has been removed, it is essential to determine its width, height, and thickness. This can be accomplished by removing the glazing beads that support the unit. replacement window seals requires patience and prudence. It is recommended to be patient and make sure to wear safety gear to safeguard yourself from unexpected shards glass and accidental slips.
Begin by taking off the lower part of the glazing strip with a sharp chisel, or a wide-bladed screwdriver. It is best to ask someone to hold the window unit as you remove all the beads. This is because the device could easily be thrown out of the frame and break.
After removing all the beads, it is essential to measure the width, the height, and the thickness of the existing unit. You can use the measurement data to accurately build a replacement unit. It also serves as a guideline to ensure that the new unit is sized to fit the frame. This is important because a mistake will not only cause the need to remove and put back together the entire window, but also affect the efficiency and performance of the window. This is particularly important in Australia where homes are often exposed to extreme weather conditions.
Preparing the Frame
If you are replacing a fixed window or a sliding one with a fixed or opening sash, be sure that your new window is of the right size. UPVC frames have very little movement and double-glazed units that is a couple of millimeters too big is not going to fit. Take care when measuring and consult a professional or manufacturer's guide for any necessary measurements.
Remove the glass from the frame once you're sure that the replacement is the right size and has been correctly fitted. Wear safety equipment like gloves and work in a location that is well-lit to avoid injuries from glass shattering. Use a putty blade to cut off the glazing beads or stripes that secure the glass in the frame from the edges of the pane. The glass is hard, and you should be careful not to slip or straining the frame.
Once the frame is ready to be sealed for the new double glazing unit, make sure whether it is capable of opening and closing smoothly. It should be a tight fit, but you can adjust it if you need to by removing or adding packers. For example, if the frame is a sliding door, you may have to add additional packers at the top of the hinge's side and in the opposite corner to keep the sash from getting caught or rattling when it opens.
Finally, clean the frame and remove any old glazing tape or sealant, as needed. Check for any damage, and make minor repairs if required by using wood filler or sanding. The frame will be rejuvenated by a final clean and inspection and will be able to stand up to the harsh Australian weather for a long time.
Lifting the New Unit
Over time, double glazed sealed units (or a 'sealed unit' as it is commonly known) may develop issues such as moisture in-between panes and/or misting. This can affect the performance of your windows and allow cold air to get in and warm air from your heater to escape, which can result in the cost of energy and discomfort.
This type of failure in seals is typically caused by aging or general wear and tear or harsh chemical cleaners that deteriorate the sealing material. However, sometimes the cause is due to the shrinking and expanding of the glass during changing seasons and changes in temperature in the home.
After the frame is cleaned and ready after which you can begin lifting the new unit in place. This is an exciting step that you've created a positive impact on your home, increasing its temperature during winter and cooling in summer, whilst also helping to reduce your energy bill.
It is essential to ensure the new piece fits in the frame prior to locking it in place. This phase is important to avoid damaging the frame and the glass.
If you use glazing tape or sealing tape on your windows, this is the perfect time to put a bead along the perimeter of the glass. This creates a strong barrier that blocks air and moisture from entering the window. Make sure to tighten the sealant carefully, but not so tightly that it causes stress to the glass or frame. Finally, give yourself and a pat on the back for a job well done, and then enjoy your newly-installed double-glazed window!
Securing the Unit
With the new unit sitting snugly in the frame and a fresh layer of sealant covering its perimeter, this is the moment that signifies the end of your project. The unit is now secured to withstand Australia's varied weather conditions, a guarantee for warmth in winter and cooling in summer. This is the moment to confirm the precision of your measuring and removal, a proof of a unit that was designed to exact measurements.
It is essential to find the perfect balance between securing the unit without overstressing the glass. If it is too loose, then the window could lose its airtight sealing. If it's too tight, it could damage the frame or warp the material. Each screw has to find its original location and rotate just enough to ensure that the unit is held securely without putting pressure too heavily on it.
This is the final step in a project that will improve a home's energy efficiency and comfort as well as its appearance. The moment you are completed, you will have a brand new double-glazed unit securely set in the frame and a new bead adorning the perimeter.
The cavity between the glass panes is filled either with either argon or a desiccant. In contrast to air, argon has much lower thermal conductivity and reduces heat transfer through glass. Desiccants also help to absorb moisture from the air, which prevents mould and condensation in the frame. The spacer bar, typically made of aluminum, is an essential part of the insulating system. Aluminium not only impedes heat transfer, but also keeps the edge of the insulated window to prevent condensation.
Be sure to check your work
It is essential to allow the silicone sealant to set after you have put in the new unit. It will take at minimum 4 hours for it to reach its full strength and create an impenetrable barrier. While you wait, evaluate your work to see if there are any gaps or issues which could affect the efficiency or appearance.
It's also a great time to inspect the seals and frame to check for any signs of damage. You can also determine if the whole window requires replacement. A faulty seal will affect the efficiency of your home's energy use and can cause drafts or cold spots. It also lets ultraviolet rays into the house and cause furniture to fade, and curtains and carpets to wear out faster.
If you're experiencing any of these problems this could be an indication that your double glazing needs replacing. Making it a priority to replace it immediately will lower your energy costs and create a more comfortable and relaxing home.
It is a technical and labor-intensive process that requires the right equipment, precise measurements and careful preparation. It is not a DIY task and should be completed by a professional in uPVC windows and doors who can ensure the correct fitting of the replacement unit, and keep your house safe from the elements. Their expertise will ensure that the double-glazed unit you select is both efficient and quiet, providing warmth in the winter months and cooling in summer. This will shield your home against the weather.