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How to Replace window pane Window Panes

A damaged or cracked window is an inconvenience. This could be an opportunity to upgrade to energy-efficient windows or insulated ones to enjoy benefits like increased comfort, higher resale value and reduced utility bills.

You can do it yourself at only a fraction of the cost it would cost to employ an expert. You only need the right tools and a few minutes of your time.

Glass

If your single-pane windows are old damaged, cracked or deteriorating, replacing them with newer insulated or tempered glass can improve energy efficiency and reduce noise while maintaining the original character of older homes. The procedure of replacing the window pane is simple and can be done by anyone with basic hand tools. In addition to a new pane, the following components are needed such as latex glazing putty; Glazier's points; pliers and a heat gun for warming the old putty if required. Before beginning, wear protective gloves and goggles since working with broken glass can cause injuries.

Take out any broken glass pieces remaining. It is recommended to use pliers however, a flathead may be useful equally. Then, use a wood chisel, or putty knife, to remove the rest of the old putty around the frame and the sash. Be careful not to scratch the window sash. Be careful and slow. It is a good idea to do this on a sturdy ladder instead of the ground, and to have someone stand below the sash to help keep it in place.

Make sure that the window frame is ready to receive the new pane when you have removed the old glue. Take measurements of the width and height of the opening in the sash and subtract 1/8 inch from each measurement (to allow for seasonal expansion and contraction). Take these measurements to the nearest hardware store or home center and have a piece of stock glass cut to size. Alternatively, you can cut the glass yourself if have the appropriate tools.

After putting in the new glass, apply a small amount of caulking to the edge. This will make the glass weatherproof. Then, you can install a glazier's pointing on each side of the frame to hold the pane in the right place. The points should not be so tight that they create friction between the frame and the sash, but they should also not be loose.

Before applying the putty work it in a gentle manner until it is smooth and free of lumps. Roll it into pencil-sized strips. Apply the first strip in the corner of the frame, replace window pane moving from one corner to another so that it is even and smooth.

Glazier's Points

The glazier's facets are tiny triangular pieces of steel that help secure glass into the frame of a window without scratching or damaging the delicate surface. Understanding how to use these tiny helpers is simple and can save you money on professional installation or the cost of new glass.

After the old putty as well as the glazier's points have been removed and the frame is thoroughly cleaned with a knife to eliminate any remaining residue. If necessary, lightly sand the wood along rabbet grooves to smooth rough areas. If you do sand the wood, make sure to protect it with painter's tack to avoid accidental damage.

Take measurements of the empty frame and write down accurate measurements. These measurements can be brought to an hardware or home centers store, and the new pane will be cut to a smaller size. This will ensure a secure fit, and allow for expansion and contraction.

Place the new pane into the frame and push it in place by using your hands. Then, use the tip of your chisel or back of the putty knife to pierce the glazier's points, as shown in Figure 11. The glazier's points should be in line with the top edge of your pane and the shoulders should be just below that lip.

Apply a small amount of glazing compound over the edges of the new glass and into the rabbet grooves, to seal and protect them. Allow it to dry and cure fully.

After the glazing compound dries, you're ready to install the new window sash. First, saturate the wood with a heavy coat of Linseed oil. This will stop the new putty from drying out or cracking due to the moisture it absorbs. Apply the coating using a brush this coat, or the tip of the blade. Then, use the chisel that is on the back of the putty tool or the back of the handle to gently hammer the new sash or glazier's point into the rabbet grooves. Repeat this process at intervals of 10 inches around the frame.

Putty

A baseball hit or a rock thrown in error, or a tree falling can cause a broken or cracked window pane. Fortunately, the majority of windows can be replaced by simply putting a brand new piece in place. 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 protective glasses and gloves while doing this work. If the window is attached to the frame, you'll need make use of a heat gun to soften the adhesive before taking it off.

If you plan to reinstall the original sash in the future, take care to remove the molding pieces that hold the old pane in place. Sand the sash until it's flat and ready to receive new caulk. Once the sash is re-installed, apply a new silicone caulk to the glass to ensure that it doesn't swell or fade as time passes.

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 difficult to cut 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 sash or its railings by using the tool too closely.

Prepare a bed for your new pane by removing the old putty and glazing points. 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. The glass must rest against the putty on both sides. If you need to, lightly tap your glass into the rabbet using your thumb.

If the new pane has a crack, you can cover it with a solvent-based glue or silicone caulk prior pressing it into the sash. If the crack is not sealed, you will need to use putty to keep water from getting in. After the putty has dried clean the oily film off the glass and let it dry completely before painting. If you paint before the putty is completely dry, it won't form an effective seal and could be leaking or discoloring in time.

Paint

If you've experienced a broken window pane, you may be worried about the cost of a new one. The truth is, replacing a single pane glass doesn't have to be costly if you do it on your own. In fact windows with double glazing window replacement panes can be replaced for less than the cost of an expert.

If you are working with a large glass window first, ensure that it is securely fixed to the frame. By using the correct tools and techniques to make this task relatively easy and speedy.

When you are ready to begin taking down the old window pane. Take out the glazing points made of metal that are attached to it. They are basically tiny metal triangles which function as "nails" which hold the window in in the wood frame. They are buried beneath a bead or glazing glue that hardens to an unbreakable wedge that holds the wood frame firmly in position and hides the sharp edges.

After taking off the old pane clean the frame and the wood. Scrape off any old paint and sand the rabbet grooves in which the glazing points were. Sand them down to clean wood surfaces, so that you can paint the frames with the same shade. After the sanding process, apply a coat of flax oil to the wood's surface to extend the life of the frame.

Then, you need to measure the width 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. Subtract 1/8 inch from each measurement to ensure that you have the exact size for the new pane. This will also allow for expansion and contraction of the glass during seasonal change. You can take these measurements to a hardware store 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.