Sofia Martinez
Plastic window glazing is a straightforward process that can be carried out by a DIY novice. It is a great way to improve the energy efficiency of your home without replacing your old windows. The process involves adding a layer of plastic to the interior of your window, which acts as a secondary glaze, providing benefits such as sonic insulation. To install plastic window glazing, you will need to take accurate measurements of your window and cut the plastic sheeting to size. You will then need to clean the window frame and glass, before securing the plastic sheet to the frame using a magnet fixing system or plastic securing clips.
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What You'll Learn
Measuring and cutting the plastic glazing to size
Measuring and cutting plastic glazing to size is a crucial step in the installation process. Here's a detailed guide to help you through it:
First, it's important to take accurate measurements of your window pane. Measure both the length and width of the window glass, adding an extra 25mm to each measurement to account for the required size of the plastic sheeting. For larger window glazing, consider using plastic securing clips for added support. If your window has unique features, you may need a bespoke design, so keep that in mind.
Next, you'll want to cut the plastic glazing to size. If you're removing old glazing, use it as a reference for cutting the new glazing. Mark the plastic glazing with your measurements, and use a sharp utility knife to cut the plastic to size. You can also use a padsaw or hacksaw, clamping the plastic firmly along the line of your cut. If you need to use a power saw, set it at a slow speed to avoid melting the plastic.
When cutting, focus on making straight, clean cuts. Apply light pressure at a shallow angle, and let the saw do the work for you. After cutting, smooth any rough edges with abrasive paper. Wipe away any plastic residue with a cloth.
Now you're ready to install the glazing. Start by placing the narrow bottom edge of the glazing against the glass, and sliding the wider top edge toward the window frame. Use a rolling motion to tuck the glazing into place. Hold it firmly in one corner, and snap the glazing into place along the frame.
Remember to wear safety gear, including safety glasses and work gloves, throughout the process.
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Removing old plastic glazing
When removing old plastic glazing, the first step is to address the glazing putty. You don't need to scrape off every bit of old putty, as new putty will bond with what's left. However, removing the majority of the old putty will ensure a good seal and improve the energy efficiency of your windows. Use a chisel and scraper to gently break the seal between the glass and the putty, being careful not to apply pressure to the glass. If the putty is tough to remove, you can soften it using steam heat or infrared heat, making it easier to scrape off.
Next, remove the plastic glazing strips. If your windows have snap-in glazing, start by removing the short pieces of glazing first. Insert a screwdriver under the top edge of the plastic glazing and gently pry it out to dislodge the raised lip from its channel in the frame. Slide the screwdriver down the length of the frame until the glazing pops free, then peel it away. Repeat this process for the remaining pieces. If your windows have a different type of glazing, follow the appropriate instructions for removal.
During the removal process, be cautious of glazing points—small metal triangles, diamonds, or similar shapes that hold the window in place. Only apply pressure sideways to dislodge these points and avoid getting the corner of your tool stuck under the glass. Once all glazing points have been removed, carefully remove the glass from the sash by gently pushing up from underneath. Check all around the sash to ensure that each side is free from glazing, putty, or any debris that could catch on the glass as you remove it.
Finally, clean the window frame by brushing away any remaining debris or putty. Check for any damage and fix it if needed. A clean frame is crucial for a proper seal when installing the new glazing. Remember to take your time, use the appropriate safety gear, and don't be afraid to call a professional if needed.
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Installing long pieces of glazing
Installing long pieces of plastic window glazing is a straightforward process that requires careful preparation and a few basic tools. Here is a step-by-step guide to help you through the process:
Prepare the Window Frame:
Before installing the glazing, ensure the window frame is clean and free of any dirt, grease, or moisture. Use a rag and a solvent like methylated spirits or rubbing alcohol to clean the frame. If there is any loose paint or rust on metal frames, use a plastic brush to scrub it off and create a smooth surface. It is crucial to ensure the frame is dry and free of moisture to prevent issues with the glazing adhesion.
Measure and Cut the Glazing:
Measure the window opening accurately, including the height and width. When purchasing replacement glazing, it is recommended to bring a piece of the old glazing to ensure you get the correct profile. The new glazing should be cut slightly smaller than the opening—typically about 1/8-inch or 3.2 mm smaller in both length and width. Mark the cut lines on the glazing and use a utility knife or a suitable saw to cut the glazing to the required size.
Prepare the Glazing Platforms:
If your window frame has glazing platforms, insert them before installing the glazing. Glazing platforms are short, rigid plastic pieces that help ensure the glazing fits properly. Place one glazing platform at the top and another at the bottom of each glass panel. These platforms usually come with the window and should be snapped into the inside edges of the sashes, which are the movable panels that hold the glass panes.
Install the Long Pieces of Glazing:
Start by placing the narrow bottom edge of the glazing against the glass, then sliding the wider top edge toward the window frame. Begin in one corner, slipping the bottom lip of the glazing into the lower groove of the frame next to the glass edge. Use a rolling motion to tuck the wider portion of the glazing under the top edge of the frame. Hold the glazing in place at that corner with one hand, and with the other hand, slide your fingers along the top edge of the plastic strip toward the opposite corner. This action will snap the glazing into place in the frame. Repeat this process for the remaining long piece of glazing, ensuring a secure fit.
Fine-Tune and Secure the Glazing:
Once the long pieces of glazing are in place, you may need to make minor adjustments with a utility knife to ensure a precise fit. Tilt the window and push on it from the backside to confirm that the glass is held securely. Depending on the window type, you may need to use glazing points (small triangular metal pieces) or spring clips to secure the glazing further. Finally, follow any specific manufacturer's instructions for additional steps to complete the installation process.
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Installing short pieces of glazing
Before installing short pieces of plastic glazing, ensure that you have the correct size and type of glazing for your window. When shopping for new glazing strips, take a piece of the old glazing with you to ensure you get the right profile. If you're buying replacement glass, it should be cut to be 1/8-inch smaller than the opening in both length and width.
Now, let's walk through the steps of installing short pieces of glazing:
First, put on safety glasses and work gloves for protection. If you are replacing a broken window, remove any loose glass from the window frame. You can use pliers to grip and remove shards, and a flat-head screwdriver or putty knife to scrape off old window putty.
Next, we'll remove the old glazing strips. Using a screwdriver, gently pry out the top edge of the plastic glazing where it meets the side of the window frame. Slowly slide the screwdriver down the length of the frame to dislodge the glazing from its channel. Repeat this process for all pieces of glazing, setting them aside as a reference for cutting new glazing.
Before installing the new glazing, clean the window frame to ensure proper adhesion. Use a rag and a solvent like methylated spirits or rubbing alcohol to wipe down the frame, removing any grease or dirt. If there is moisture present, use gentle heat to evaporate it.
Now, let's prepare the new glazing strips. The two shorter pieces of glazing are typically cut with a 45-degree mitre at the corners and then trimmed to fit the glazing profile. Practice trimming on some scrap pieces first to get a feel for tight-fitting corners. Remember to trim the glazing strips slightly larger than the frame opening, as they will snap into place and create a tight seal.
Finally, install the short pieces of glazing. Place the narrow bottom edge of the glazing against the glass, and slide the wider top edge toward the window frame. Starting at one corner, slip the bottom lip of the glazing into the lower groove of the frame, and then use a rolling motion to tuck the wider portion under the top edge of the frame. Hold the glazing in place at that corner while snapping the rest of the piece into the frame.
By following these steps, you can successfully install short pieces of plastic window glazing, ensuring a secure and proper fit.
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Cleaning the window
First, put on safety gear, including safety glasses and work gloves, to protect yourself from any sharp edges or loose glass shards. If you are replacing a broken window, remove any loose glass from the window frame using a screwdriver or other suitable tools. Ensure you brush away or vacuum any remaining tiny glass shards for safety.
Next, hose down the window frame and glass to remove loose particles. This step ensures that you start with a relatively clean surface and reduces the risk of spreading dirt or dust into the surrounding area. Once hosed down, proceed to clean the window frame and glass with a mild soap solution, a vinegar and water solution, or a store-bought window cleaner. Avoid using soaps or detergents on the glass as they can leave a residue. Instead, use a vinegar and water solution (one part vinegar to two parts water) or an ammonia-free glass cleaner applied with a lint-free cloth or newspaper, wiping in a circular motion.
For the window frame, use a mild non-detergent soap diluted in water and applied with a microfiber cloth, soft towel, or sponge. Ensure you wipe away any remaining soap solution with a damp cloth to prevent water spots and streaks. Alternatively, you can use a vinegar and water solution for the frames as well, eliminating germs and ensuring a spotless finish.
Finally, allow the window to air dry or use a squeegee with a long handle to wipe down the glass, ensuring all water is removed and reducing the chance of water spots. With the window thoroughly cleaned, you can proceed to the next steps of installing the plastic window glazing, secure in the knowledge that your window is not only sparkling clean but also well-maintained and protected from potential issues like mould or etching.
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Frequently asked questions
Starting at one of the corners, insert the tip of a screwdriver under the top edge of the plastic glazing where it meets the side of the window frame. Gently pry it out to dislodge the raised lip of the glazing from its channel in the frame. Slide the screwdriver blade down the length of the frame until the glazing pops free. Repeat this process for all four pieces of glazing.
First, obtain a replacement piece of glazing cut to the right size and shape for your window. Place the narrow bottom edge of the glazing against the glass and slide the wider top edge toward the window frame. Slip the bottom lip of the glazing into the lower groove in the frame and tuck the wider portion under the top edge of the frame with a rolling motion. Hold the glazing in place and snap it into the frame.
You will need safety glasses, work gloves, a screwdriver, a utility knife, a measuring tape, and a saw (preferably a padsaw or hacksaw). You may also need a soft lint-free cloth, mild soap, and a coil of self-adhesive magnetic strip.
