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How to Replace Window Panes

A cracked window pane can be a nuisance. It can also be an opportunity to upgrade your glass to energy efficient or insulated windows and enjoy benefits such as improved comfort, increased the value of resales and lower utility bills.

You can do it yourself for a only a fraction of the cost it would cost to hire an expert. It requires the right tools and only an hour or two of your time.

Glass

Replace your single-paned windows using tempered or insulated glass to increase energy efficiency, cut down on noise, and maintain the original character of your home's older. A majority of homeowners with hand tools can replace Window Pane windows with ease. In addition to a replacement pane, the following components are required for the replacement process: latex glazing putty pliers, glazier's points and an electric heater to warm the old putty if required. Wear safety goggles and gloves prior to beginning. Working with broken glass could result in serious injuries.

Remove any broken glass pieces that remain. This is best accomplished with a pair of pliers, but a flathead screwdriver can also be effective in the pinch. Make use of a wood chisel or putty knife to get rid of any remaining old putty around the frame and the window sash. Work slowly and carefully and be careful not to break the current window sash. It is best to do this on a sturdy ladder rather than on the ground and have someone stand below the sash in order to help hold it in place.

After you've removed all the old putty, it is time to prepare the window frame to accommodate the new pane. To allow for seasonal expansion or contraction and contraction, subtract 1/8 inch from the measurements of the width and height. These measurements can be sent to an hardware or home centers store to have a piece cut of glass replacement windows stock to the proper size. You can also cut the glass by yourself if you have the right tools.

After putting in the new glass, apply caulking to the edge. This will make the glass weatherproof. Install a glazier's point on both sides of the frame. This will help secure the pane. The points should not be so tight that they cause friction between the frame and sash However, they should not be loose.

Before putting the putty on, knead it thoroughly until it is smooth and free of lumps. Cut it into pencil-sized pieces. Place the first strip in the corner of the frame, moving from one corner to the other to ensure it is smooth and even.

Glazier's Points

The glazier's facets are small triangular pieces that allow glass to be secured into the frame of a window without scratching or damaging the fragile surface. It's simple to learn how to use this nefarious tool, and you'll be able to save money on the cost of a professional installation.

Once the old putty and the glazier's points have been removed Clean the frame thoroughly with a utility knife to get rid of any remaining residue. If necessary, lightly sand the wood along the grooves of the rabbets to smooth out rough areas. If you decide to sand the wood, make sure to protect it by using painter's tape to prevent accidental damage.

Note down the dimensions of the frame. These measurements can be brought to the hardware or home center store, and the new pane will be cut to a smaller size. This will ensure that the pane fits perfectly and allows for expansion and contraction.

Place the new pane in the frame and push firmly with your hands. Then, use the tip of your chisel or the back end of the putty knife to pierce the glazier's points as illustrated in Figure 11. The glazier's point should be flush against the top edge of your pane, and the shoulders raised should be just below that lip.

Apply a thin layer of glazing compound on the rabbet grooves as well as the edges of the glass. This will seal and protect the edges. Let it dry and cure completely.

Install the new window sash after the glazing compound has dried. The first step is to coat the wood with a thick coat of linseed oil. This will prevent the newly-created putty drying out or cracking when it absorbs moisture. Use a brush to apply this coat, or the point of the blade. Then, use the chisel on the back of the putty tool or the back of the putty handle to gently hammer the new sash or glazier's tip into the grooves of the rabbet. Repeat this process in intervals of 10 inches around the frame.

Putty

A baseball thrown or a rock thrown by error, or a tree falling could result in a broken or cracked window pane. The majority of windows can be replaced by putting in a new piece. The glass is held in place with tiny metal clips known as a glazier's point and putty, often called glazing compound. Remove the old pane and clean the area using a rag, a scraper that is a pull type or a wood chisel. Wear safety glasses and gloves while working. You'll require a heat gun if the window is glued to the frame.

If you are planning to install the original sash, take off the molding that supports the old pane. Then, sand the sash to ensure it's smooth and ready for a new caulk. Once the sash is installed then, apply a new silicone caulk around the glass to ensure that it won't leak or discolor as time passes.

Remove the glazing points from the rabbets, the grooves in the sash, where the glass sits. If they're hard to chisel, hold a hand tool like a heat gun over them for a few minutes to soften them. When using a heating tool, make sure to avoid damaging the sash or Replace Window Pane its railings.

After the old glaze points and putty have been removed make a bed for the new pane. Roll a rope of glazing compound between your hands, forming it to be around 1/2-inch thick. Press it into the rabbets where the glass will be placed. The glass must rest against the putty on both sides. If necessary gently tap your glass into the rabbet with your thumb.

If the new pane is cracked, you can cover it with a solvent-based glass glue or silicone caulk before pressing it into the sash. If the crack is not sealed, you will need to use putty to keep the water out. After the putty has dried and the film is oily, wipe it off the glass with the help of a rag. Allow it to completely dry before painting. If you paint before the putty is completely dry, it won't form a solid seal and could discolor or leak over time.

Paint

If you've suffered a break in a window pane, you may be worried about the expense of a new one. But the truth is that replacing one glass pane does not need to cost a fortune If you can do it yourself. Even double-paned windows can be replaced at a fraction of the cost it will cost a professional.

First, if you're working on a large-sized window, make sure that it is securely attached to the frame. With the right tools and techniques to complete this task easily and quick.

When you are ready to begin taking down the old window pane. Take out the metal glazing points that are attached to it. These are tiny metal triangles which act as "nails" that hold the window within the frame. They are placed under a bead or glazing glue that sets to form solid wedge that holds the wood frame securely in place and hides the sharp edges.

Once you have the old pane taken away, clean up the surrounding frame and wood. Scrape off any paint that has been used and sand the rabbet grooves in which the glazing points were. These should be sanded to the point of being bare, so that you can paint them the same color as the rest of the frame. After sanding the wood you can apply a layer flax oil. This will help extend its life.

The next step is to determine the width of the window's opening. You'll need to take horizontal and vertical measurements of the entire opening, as well as the thickness of the old pane. To get the exact size of the new pane, subtract 1/8 inch from both measurements. This will also allow for expansion and contraction of the glass during seasonal changes. You can take these measurements to a hardware or home improvement shop and get the glass cut 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.