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How to replace window pane 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 more comfort, higher the value of resales and lower utility bills.

You can do it yourself for a a fraction of what it would cost to hire an expert. You'll only require the appropriate tools and a few minutes of your time.

Glass

Replace your old single-paned windows using tempered or insulate glass to improve energy efficiency, reduce noise, and protect the historical integrity of your home's older. The process of replacing windows is easy and can be completed by most homeowners who possess basic hand tools. You will also need an extra window pane, glazier's tips pliers, and latex glazing putty. If needed you may use a heating gun to warm the old putty. Wear safety goggles and gloves prior to beginning. Working with broken glass could result in serious injuries.

Begin by removing any broken pieces of glass. It is recommended to use pliers for this however, a flathead may work as well. Then, use a wood chisel, or putty knife, to take the remainder of the old putty from the frame and sash. Take your time and work slowly making sure not to break the existing window sash. It is recommended to do this using a sturdy ladder instead of the ground, and to have someone standing below the sash to help hold it in place.

Once you have removed all the old putty, it is time to prepare the window frame for the new pane. Measure the width and 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 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 have the right tools.

After installing the glass, apply a small amount of caulking on the edges. 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 create friction between the frame and sash however they shouldn't be loose.

Before putting the putty on, replace window Pane work it in a gentle manner until it is soft and free of lumps. Then you can roll it into pencil-sized strips. The first strip should be placed to the corner of the frame, moving from one corner to the next so that it is smooth and even.

Glazier's Points

The glazier's points are small triangular pieces of steel that allow glass to be secured to the frame without causing any damage to the fragile surface. Knowing how to use these hidden little helpers is easy and could save you money on professional installation or the cost of purchasing new glass.

After getting rid of the old putty glazier points, and any other residue, clean the frame thoroughly using a utility knife. If needed you can lightly sand the wood in the rabbet grooves to smooth out rough spots. If you sand wood cover it with painter's tape to protect it from damage caused by accidental sanding.

Note down the dimensions of the frame. Take these measurements to a hardware store or a home center, and have the new pane made slightly smaller than the frame's opening. This will ensure a secure fit, and allow for expansion and contraction.

Place the new pane into the frame and push it in using your hands. Make use of the chisel's point, or the edge of the putty blade to tap in the glaziers' points as illustrated in Figure 11. When you're done taping, they should be flush with the top edge of the pane and the shoulders that are raised of the points should be just below the rabbet's rim 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 it to dry and cure completely.

Once the glazing compound has dried it's time to put in the new window sash. The first step is to coat the wood with a thick layer of linseed. This will prevent the newly-created putty drying out or cracking when it absorbs moisture. Use a brush to apply this coat, or even the tip of the blade. Then use the chisel that is on the back of the tool or the back of the handle to gently hit the new sash, or glazier's point into the rabbet grooves. Repeat this process every 10 inches around the perimeter of 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 repaired easily by installing a new piece. 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, pull-type scraper, or a wood chisel. Wear gloves and safety glasses when you work. You'll require a heat gun if the window is glued into the frame.

If you are planning to reinstall your original sash, you must remove the molding that holds the old pane. Sand the sash until it is flat and ready to receive new caulk. Once the sash is put back in place it is possible to apply a silicone caulk on the glass. This will ensure that it doesn't leak over time or discolor.

Remove the glazing points from the rabbets and the grooves in the sash, where the glass is. If they're hard to chisel out, try placing an instrument like a heat gun over them to soften them before you do. If you're using a heat gun, be careful not to scratch the railings of the sash or the sash itself by holding the tool too close.

After the old points of glazing and putty are removed, make a bed for the new pane. Roll a rope of glazing compound between your hands, forming it into a 1/2-inch thick. Then, press it into the rabbets in which the glass will be. It is essential that the glass rests against the putty on both sides So if you have to do so, gently tap the glass into the rabbet using your thumb.

If the new pane is damaged, you can use the silicone caulk or glass glue made from solvents to seal the crack prior to pressing it in the sash. If the crack is not sealed, you will need to apply putty to keep water from getting in. After the putty has dried and the film is oily, wipe it off the glass with an abrasive and allow it to completely dry before painting. Paint after the putty is completely dry. It will not make a strong seal and could leak or discolor with time.

Paint

You might be worried about replacing a damaged piece of glass. The truth is, replacing a single pane of glass doesn't have to be costly when you do it on your own. Even a double-paned window could be replaced at a fraction of the cost it will cost for a professional.

If you are working with a large glass window first ensure it is securely attached to the frame. This job can be made relatively simple and fast with the proper tools and techniques.

Once you're ready to begin with the removal of the old window by removing the glazing points made of metal that are attached to it. They are basically tiny metal triangles that act as "nails" that hold the window in in the wood frame. They are buried beneath a bead or glazing glue that hardens to solid wedge that holds the frame securely in place and conceals the edges.

After taking off the old pane clean the frame and wood. Scrape off any old paint, and sand the rabbet grooves that the glazing points were. They should be sanded to bare wood, so that you can paint them the same color as the rest the frame. After sanding the wood then apply a layer of flax oil. This will help to extend its life.

The next step is to determine the size of the window's opening. You'll need to determine the vertical and horizontal dimensions of the entire opening, as well as the thickness. Subtract 1/8 inch from each measurement to ensure that you get a precise size for the new pane. This will also allow replacement handles for windows expansion and contraction of the glass during seasonal changes. You can take these measurements to a hardware or home improvement shop and 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.