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How to Replace Window Panes

A damaged or cracked window is an issue. It could also be an opportunity to upgrade your glass to energy efficient or insulated windows and reap benefits like improved comfort, increased the value of resales and lower utility bills.

You can do it yourself at less than what it would cost to hire an expert. It requires the right equipment and an hour or two of your time.

Glass

If your single-pane windows are old damaged, cracked or deteriorating, replacing them with newer glass that is tempered or insulated will improve energy efficiency and reduce noise while also preserving the original character of older homes. A majority of homeowners with hand tools can repair the window pane. You'll also require an additional window pane, glazier's tips pliers, and latex glazing putty. If needed you may make use of a heat gun to warm the old putty. Wear safety goggles and gloves prior to starting. Working with broken glass can cause serious injuries.

Remove any broken glass pieces remaining. This is best accomplished with the help of pliers though using a flathead screwdriver may be used in a pinch. Make use of a wood chisel or putty knives, to take away any remaining old putty around the frame and window sash. Be careful not to scratch the window sash. Take your time and work slowly. It is best to do this on a sturdy ladder rather than the ground and have someone stand below the sash to help keep it steady.

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

After putting in the new pane After installing the new pane, apply a small amount of caulking around the edges to make it weatherproof. Install a glazier's pointing on both sides of the frame. This will help secure the pane. The points should not be so tight that they create friction between the sash and Cheapest the frame however they shouldn't be too loose.

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

Glazier's Points

The glazier's points are the small triangular pieces that help secure glass into the frame of a window without damaging or scratching the delicate surface. It's easy to understand how to use this secret tool, and you'll save money on the expense of a professional installation.

After the old putty as well as the glazier's points have been removed, thoroughly clean the frame with a utility knife to get rid of any remaining residue. If necessary, lightly sand the wood along the rabbet grooves to smooth rough spots. If you do sand your wood, ensure you protect it with painter's tape to avoid accidental damage.

Measure the empty frame's dimensions and note down precise measurements. These measurements can be taken to a home center or hardware store, and the new frame will be cut slightly smaller. This will ensure that the pane fits perfectly and allows for Cheapest expansion and contraction.

Place the new window in the frame and push it into the frame using your hand. Use the point of the chisel or the back of the putty blade to smudge the glaziers' points as shown in Figure 11. The glazier's point should be in line with the top edge of the 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 new glass. This will seal and protect the edges. Allow this to dry and cure completely.

Once the glazing compound has dried, you're ready to install the new window sash. First, you need to coat the wood with an even layer of linseed. This will prevent the new putty from drying out and cracking due to the moisture it absorbs. Apply the coat using a brush or the tip of your putty knife, then use the chisel or the back end from the putty knife to gently press the new sash and glazier's tips into the rabbet grooves. Repeat this process in intervals of 10 inches around the frame.

Putty

A baseball hit or a rock thrown by error or a branch falling can result in a cracked or cracked window. Fortunately, windows can be replaced by simply placing a new piece in the proper place. The glass is held in place with tiny metal clips known as a glazier's point and putty, which is often called glazing compound. Remove the old pane and clean the area using the rag, a pull-type scraper, or a wood chisel. Wear safety glasses and gloves while working. You'll need a heating gun in the event that the window is glued into the frame.

If you're planning to install the original sash, remove any pieces of molding that are used to secure the old pane. Sand the sash until it's flat and ready to receive new caulk. After the sash has been reinstalled, you can apply a silicone caulk over the replacement glass for windows. This will ensure that it doesn't be leaking or fade over time.

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

Prepare a bed for your new pane after you have removed the old glaze and putty. Roll a rope of glazing compound between your hands, shaping it into a 1/2-inch thick. Press it into the rabbets where the glass will be placed. It is essential that the glass sits on the putty on both sides If you have 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 glass glue based on solvents to seal the crack before pressing it into the sash. Otherwise, you'll need to apply putty over the crack to create an impervious seal to keep water out. After the putty is dry then clean the oily film off the glass using the help of a rag. Allow it to dry completely before painting. Paint before the putty has completely dried. It won't form a good 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. In reality, replacing a single piece of glass doesn't have to be costly when you do it on your own. In fact, even a double-pane window can be replaced at less than the cost of a professional.

First, if you are working on a large-sized window, ensure that it is securely fastened to the frame. This task can be made relatively simple and fast using the right tools and techniques.

When you are ready to start taking down the old window glass replacement pane. Take out the metal glazing points attached to it. These are tiny metal triangles which act as "nails" that hold the window in the frame. They are submerged beneath a bead or glazing putty which hardens into an unbreakable wedge that holds the frame firmly in position and hides the sharp edges.

Once you have the old pane taken away Clean up the frame and wood. Scrape off any paint and sand down the rabbet grooves where the glazing points used to be. Sand them down to clean wood surfaces, so that you can paint the frames the same color. After sanding, apply a layer of flax oil to the bare wood to help extend its lifespan.

Then, you need to measure the width of the window opening. It is necessary to measure the vertical and horizontal dimensions of the entire opening as well as the thickness. To determine 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 measurements to the hardware or home improvement store, and they will have 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.