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How to Replace Window Panes

A damaged or cracked window is a nuisance. This can be an opportunity to upgrade to energy-efficient windows or insulated ones, and reap benefits like increased comfort, increased resale value and reduced utility bills.

You can do it yourself for a only a fraction of the cost it would cost to employ an expert. You'll only require the right tools and a few hours of your time.

Glass

If your single-pane windows replacement glass are old broken, deteriorating or damaged replacing them with modern glass that is tempered or insulated will increase energy efficiency and decrease noise while also preserving the historical integrity of older homes. Most homeowners with basic hand tools can repair the window pane. In addition to a replacement Window Locks (www.worldwidefoodsupplyinc.com) pane, the following components are needed: latex glazing putty; Glazier's points; pliers and an electric heater to warm the old putty if required. Wear safety goggles and gloves prior to starting. Working with broken glass could cause serious injuries.

Take away any broken glass pieces remaining. This is best done using the help of pliers however, flathead screwdrivers can be effective in a pinch. Then, use a wood chisel or putty knife to take the remainder of the old putty from the frame and the sash. Take your time and work slowly, taking care not to damage the old window sash. It is a good idea to work using a sturdy ladder rather than on the ground and to have someone stand below the sash to help keep it in place.

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

After putting the new pane in place After installing the new pane, apply a small amount of caulking around the edges to seal it against weather. Then, you can install a glazier's pointing on the frame's opposite side to hold the pane in its place. The points shouldn't be too tight as to cause friction between the frame and sash but they shouldn't be loose.

Before applying the putty make sure to knead it until it's soft and free of lumps. Roll it into pencil-sized strips. The first strip should be glued to the frame's corner. Work from one corner to the next, making sure it is even and smooth.

Glazier's Points

The glazier's points are tiny triangular pieces of steel that allow glass to be secured into the frame of a window without scratching or damaging the delicate surface. Learning how to use these tiny pieces of help is simple and could save you money on professional installation or the cost of purchasing new glass.

Once the old putty and the glazier's points have been removed, thoroughly clean the frame with a utility knife to eliminate any remaining traces. Lightly sand the wood into the rabbet grooves to smooth out rough areas. If you decide to sand wood, protect it with painter's tape to protect it from damage caused by accidental sanding.

Write down the exact dimensions of the frame. Bring these measurements to a hardware store or a home center, and have the new pane cut smaller than the frame's opening. This will ensure that the pane fits snugly and allows for expansion and contraction.

Insert the new pane into the frame and press it down with your hands. Then use the point of your chisel or the back of the putty knife to pierce the glazier's points as shown in Figure 11. The glazier's points should be flush against the top edge of your pane and the shoulders should be just below the lip.

Apply a small amount of glazing compound over the edges of the glass that has been made and into the rabbet grooves to seal and protect them. Allow it to dry and cure completely.

Install the new window sash once the glazing compound has dried. First, saturate the wood with a thick coat of linseed oil. This will keep the new putty from sucking up the moisture and deteriorating and cracking with time. Apply this coat with a brush or the edge of your putty knife, and then use the chisel or the back end of the knife to gently press the new sash and glazier's tips into the grooves of the rabbet. Repeat this procedure every 10 inches along the perimeter of the frame.

Putty

A baseball hit or a rock thrown by error or a branch falling can cause a broken or cracked window. Fortunately, the majority of windows can be repaired by simply putting a brand new piece of glass in its the right place. The glass is held into place by a small metal clip, also known as a glazier's point and putty. This compound is also referred to as glazing compound. Remove the old pane and clean the area with an abrasive, scraper that is a pull type or a wood chisel. Wear protective glasses and gloves while working. If the window is attached to the frame, you'll need use a heat gun to soften the adhesive prior to prying it free.

If you are planning to reinstall your original sash, you must remove the molding that holds the old pane. Then, sand the sash to make sure it's flat and ready for new caulk. After the sash has been re-installed then, apply a new caulk made of silicone around the glass to ensure that it will not leak or change color in time.

Take out the glazing points in the rabbets. These are the grooves in the sash, which is where the glass is located. If they're hard to chisel out, try holding an instrument like a heat gun to soften them first. If you're using a heating gun, make sure not to scratch the railings or sash by using the tool too closely.

Create the bed for your new pane by removing the old glaze and putty. Roll a rope of glazing compound between your fingers and make it about 1/2 inch thick. Place it into the rabbets, where the glass will be put. It's important that the glass rests against the putty on both sides, so if you need to, lightly tap the glass into the rabbet with your thumb.

If the new pane has a crack then you can seal it with a solvent-based glue or silicone caulk prior to pressing it into the sash. If the crack isn't sealed, you'll need to use putty to keep water out. Once the putty is dry clean the oily film from the glass and let it dry completely before you paint. If you paint before the putty is fully dry, it will not form a solid seal and could be leaking or discoloring over time.

Paint

You may be concerned about replacing a broken pane of glass. But the truth is that replacing a single glass pane doesn't have to break the bank If you can do it yourself. In fact even windows with double panes can be replaced at less than the cost of a professional.

If you're working with a large glass window first, ensure that it is securely fixed to the frame. With the right tools and techniques, you can make this task relatively easy and fast.

When you are ready to start taking down the old window pane. Remove the metal glazing points that are attached to it. These are tiny triangles of metal that act as "nails" that hold the window in the frame. They are buried beneath a glaze putty or bead that hardens to an unbreakable wedge that holds the frame securely in place and hides the sharp edges.

Once you have the old pane removed, clean up the surrounding frame and wood. Scrape off any paint that has been used and sand down the rabbet grooves in which the glazing points were. Sand them to bare wooden surfaces, allowing you to paint the frames the same shade. After sanding the wood you can apply a layer flax oil. This will help to extend its life.

Next, measure the dimensions of the window opening. You will need to take vertical and horizontal measurements of the entire opening, and also the thickness of the old pane. To get the exact size of the new pane subtract 1/8 inch from both measurements. This will allow for seasonal changes in the glass. Take these dimensions to the hardware or home improvement store and ask them to cut you 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.