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How to Replace Window Panes

A damaged or cracked window can cause a lot of trouble. It could be a chance to upgrade to energy-efficient windows or insulated ones, and reap benefits like increased comfort, higher resale value and lower utility costs.

You can do it yourself at a fraction of what it would cost to hire an expert. You only need the proper tools and a few hours of your time.

Glass

Replace your old single-paned windows replacement near me with tempered insulation glass to improve the efficiency of your energy, reduce noise, and preserve the historical integrity of your home's older. Most homeowners with basic hand tools can replace windows with ease. You will also require an additional window pane, glazier's tips pliers, and latex glazing putty. If needed you can make use of a heat gun to warm the old putty. Wear safety glasses and gloves prior to starting. Working with broken glass could cause serious injuries.

Remove any broken glass pieces remaining. This can be done with a pair of pliers, but a flathead screwdriver can also be used in the pinch. Use a wood chisel, or putty knives, to take away any remaining old putty around the frame and window sash. Take your time and work slowly, taking care not to break the current window sash. It is a good idea to do this on a sturdy ladder rather than on the ground, and to have someone standing below the sash in order to help hold it steady.

After you have removed all the old putty, prepare the window frame for the new pane. Find the width and the height of the opening in the sash, subtracting 1/8 inch from each measurement (to allow for seasonal expansion and contraction). Bring these measurements to a hardware store or home center and get a piece of stock glass cut to size. You can cut the glass yourself if you possess the appropriate tools.

After installing the new glass Apply a small amount of caulking to the edge. This will make the glass weatherproof. Then, place a glazier's tip on the frame's opposite side to secure the pane into the right place. The points should not be so tight that they create friction between the frame and the sash however they should not be loose.

Before applying the putty on the surface, knead thoroughly until it is smooth and free of lumps. Make it into pencil-sized strips. Apply the first strip to the corner of the frame. Work from one corner to another to ensure it's even and smooth.

Glazier's Points

The glazier's points are the small triangular pieces which help to secure glass into the frame of a window without scratching or damaging the delicate surface. Knowing how to use these tiny pieces of help is simple and could save you money on professional installation or the cost of new glass.

After removing the old putty, glazier points, and any other leftovers Clean the frame thoroughly using an utility knife. Lightly sand the frame in the rabbet grooves, if necessary, to smooth rough areas. If you decide to sand the wood, be sure to protect it by using painter's tape to prevent accidental damage.

Measure the empty frame's dimensions and write down accurate measurements. These measurements can be brought to an hardware or home centers store and the new pane will be cut slightly smaller. This will ensure a snug fit and will allow room for expansion and contraction.

Place the new pane in the frame and push firmly with your hands. Then use the point of your chisel, or the back of the putty knife to tap in the glazier's facets, as illustrated in Figure 11. When you're done taping, they should be level with the top edge of the pane and the raised shoulders of the points should be just below the lip of the rabbet groove.

Apply a thin layer of glazing compound on the edges of the new glass and into the rabbet grooves, to seal and protect them. Allow this to dry and cure completely.

After the glazing compound dries it's time to put in the new window sash. First, saturate the wood with a heavy coat of Linseed oil. This will prevent the newly-created putty drying out or cracking due to the moisture it absorbs. Apply this coat with a brush or the edge of your putty knife, and then use the chisel, or the back end from the putty knife to gently hammer the new sash and glazier's points into the rabbet grooves. Repeat this procedure every 10 inches around the frame's perimeter.

Putty

A baseball thrown or a rock thrown by error or a branch falling could result in a broken or cracked window. Most windows can be repaired easily by putting in a new piece. The glass is held in place using small clips made of metal called the glazier's pointed and putty, which is often called glazing compound. Before installing a new pane, first take out the old one and clean up the area using an abrasive and an abrasive scraper that is a pull type or a wood chisel. Wear gloves and safety glasses while you do this work. You'll require a heat gun if the window is glued into the frame.

If you are planning to install the original sash, take off the molding that holds the old pane. Sand the sash until it's flat and ready to receive new caulk. Once the sash is installed and sanded, apply a fresh caulk made of silicone around the glass to ensure that it will not leak or change color as time passes.

Remove the glazing points from the rabbets, or the grooves in the sash that the glass is. If they're difficult to chisel, hold a hand tool such as a heatgun over them to soften first. If you're using a heating gun, be cautious not to cause damage to the railings or sash by placing the tool too close.

Once the old points of glazing and putty have been removed make a bed for the new pane. Roll a rope of glazing compound between your hands, and form it into a 1/2-inch thick. Then, push it into the rabbets, where the glass will be. It's important that the glass sits on the putty on each side, so if you need to tap it, gently press the glass into the rabbet using your thumb.

If the new pane is cracked, you can apply a silicone caulk or a replacement glass Windows glue based on solvents to cover the crack before pressing it in the sash. If the crack isn't sealed, you will require putty to keep water from getting in. Once the putty is dry remove the oily film off of the glass and let it dry completely before you paint. If you paint before the putty has completely dry, it won't create an effective seal and could leak or discolor in time.

Paint

If you've experienced a broken window pane, you may be worried about the expense of a new one. However, replacing a single glass pane doesn't need to cost a fortune if you do it yourself. Even a double-paned window could be replaced for a fraction of the price it costs an expert.

If you are working on a large-sized window, make sure that it is securely fastened to the frame. By using the correct tools and techniques you can make this task relatively easy and quick.

Once you're ready to begin with the removal of the old window by removing the glazing points made of metal that are connected to it. These are basically small metal triangles which function as "nails" that keep the window in place in the wood frame. They are buried beneath a bead or glazing putty which hardens into a solid wedge that holds the wood frame firmly in position and hides the points.

After removing the old pane, clean the frame and the wood. Scrape off any old paint, and sand the rabbet grooves where the glazing points were placed. Sand them down to clean wooden surfaces so you can paint the frames with the same shade. After sanding the wood, apply a layer of flax oil. This will help to extend its life.

Then, take measurements of the dimensions of the window's opening. You'll need to determine the horizontal and vertical dimensions of the entire opening as well as the thickness. Subtract 1/8 inch from each measurement to ensure you have the exact size for the new pane. This will also allow for expansion and contraction of the glass during seasons of changes. Take these measurements to a hardware or home improvement store, and they will have cut the glass for you.

Now, it's time to bed the new window pane. To do this, place the pane inside the frame and move it around until a 1/16 inch of putty remains between the edge of the glass and the sash on all four sides. Use a putty knife to smear the putty evenly, making sure that there isn't an excessive amount of excess putty in the corners and along the edges. When the putty dries, it can be painted with the same color as the frame to prevent water and air from leaking into the frame and causing fogging.