Replacing French Door Glass
Replacing a broken piece of glass on a French door is a simple DIY project. It involves cleaning the glass pane and removing molding or trim and installing a new window pane.
French doors feature multiple glass panes that are separated by muntin bars for functional purposes also known as mullions. They are available in a variety configurations and may include triple-pane glass to increase energy efficiency, reduce sound and control the glare.
How do you replace a broken pane of glass
Before starting the replacement process, wear rubber gloves and safety glasses to protect yourself from any fragments of broken glass that might fall off during the replacement process. Work in an open space such as garages and keep your children out. For easier access it is best to take your window frame from its ledge. However, you can still replace the pane, but without removing the entire frame.
Begin by scraping off any old glazing compound or caulking around the edges of the sash using a putty knife. You don't want to damage the wood molding that holds the window in place. It will be needed to hold the new window.
If you're working with a steel casement windows, it may be held in position by metal glazing points. It is necessary to remove these as well as the old putty before you can remove the window out of the frame. Paint scraper or chisel can work. If the putty is difficult to get rid of, you can employ a heat gun in order to soften it. The heat gun should be held about one inch from the glass and move it back and forth to spread the heat. Double-up the aluminum foil, then place it on the panes that are next to it. This will stop them from breaking due to the heat.
After you've removed the old glass, apply a damp cloth and clean the inside of the window sash in order to remove any dirt or dust. It is now time to put in a new piece of glass.
To cut a piece of glass to size, first measure the width and height of the opening. Note these measurements and subtract 1/8 inch from each side to get a new glass that will fit easily into the door frame. Many hardware stores will cut a piece of glass for you if you supply the measurement.
Warm a handful of putty in your hands before rolling it into a length of 3/4 inch thick. Position the putty against one edge of the exposed rabbet, and rest the blade of your putty knife at a 45-degree angle to the frame's rabbet. Pull the knife across the edge of the glass in a smooth, straight line to cut a section of the pane. Repeat the process for the other edges of the pane. Then, scrape away the excess putty.
Remove the Broken Pane
A broken glass pane in a French-styled door is not just an eye sore but can also pose a risk to safety. It's easy to replace a pane in a French-style door, and it's generally less expensive than replacing the whole door panel. The majority of homeowners can do this on their own, however professional assistance is available to those who require special tools or know-how.
Begin by taking out any cracked or broken pieces of the frame. It is essential to wear gloves and safety goggles to avoid getting shards of glass on your face or in your eyes. Then, clean out the glass opening to eliminate any caulking or putty that was used to keep the previous pane in place.
The next step is to remove any trim or molding that was holding the glass in place. This isn't easy since it could require some prying to get the molding out. Wearing protective gear and having someone assist you in the process of prying is a good idea. It is also recommended to mark the pieces you're taking off, so that you can put them back in place at the appropriate time.
After the molding has been removed and the molding is removed, you can begin putting in the new pane of glass. Find the measurements of the glass pane opening, and then go to an establishment that sells glass to purchase a new glass for your French door. It's a good idea to purchase a piece of security glass, since it won't break as easily should your French doors break again.
Once you're ready to set up the new piece of glass, make sure it's aligned properly in the opening. Then, apply a fine dot of clear silicone caulk around the edge of the glass.
You can replace the molding after the caulk dries. If the original nails did not penetrate the molding, you can hammer new wire nails into the holes created by the old nails. To stop the nails from breaking the molding, it is recommended to first drill the holes. A well-stocked hardware store carries tiny bits that can be used to drill the holes.
How to cut a new Pane Of Glass
Before purchasing a new piece of glass, make sure the frame's dimensions and the edges of the window are equal. If you see any gaps, you might require adjusting the spring clips or the metal triangles that hold it to the frame. You should also make sure that the new pane is the correct size for the opening. If it's too big there could be leakage and other problems.
The first step is to prepare an area for work. Scrape the old compound off both sides of the frame using a putty knife to reveal the bare wood. If the rabbets have become too rough to smooth with a putty knife, lightly sand them and apply an exterior primer. This will stop the new glass from absorption of moisture from the wood and shorten its lifespan.
After the frame has been cleaned and prepared, knead a handfull of putty until it's soft and malleable. Apply a thin layer using the blade of putty to the inside of the corner rabbets in order to create a bed on which the glass can rest. Repeat the process for the other exposed edges.
Remove any remaining metal pieces from the grooves of the sash when the putty has dried. Before you attempt to remove them, put on goggles with safety features to protect yourself from glass fragments. The low setting of heat guns can be used to gently warm the metal, allowing it to loosen so that it is possible to remove it with pliers.
After the glass and frame are in place, test it by sliding it into the frame. Make any necessary adjustments before securing it in place with spring clips or metal triangles. Make sure that the gap between the frame and glass is even on all sides. Check the movement of the window sash and make sure that the new glass does not hinder the opening or closing. If you have any issues with the installation, consult an expert who specializes in restoration to help you repair and preserve your home's historic features.
Install the Pane of Glass
Test-fit the new glass pane to ensure that it fits properly before putting it up. Take measurements of the width and height of the window opening by measuring from the outside edge of the L channels. Subtract 1/8 inch from each measurement to determine the size of glass you should purchase. repairmywindowsanddoors.co.uk will be much easier to install the pane by reducing it slightly. This will also allow for seasonal expansion and contraction of the frame. Take your measurements to an hardware store or a home center and let them cut a piece glass for you. Alternately, you can cut the glass yourself if happen to have a huge sheet of stock glass.
After removing the glass pane, clean the window sash grooves. Remove any glazing points that were used to support the previous pane. This can be accomplished using a pull-type paint scraper, or a Chisel. If the grooves contain an abundance of hardened putty in them, you can gradually soften it by using a heating gun. Be careful to cover surrounding windows and moldings with aluminum foil to protect them from the heat.
Scrape and sand the rabbets where the glass is, and then brush an exterior primer on them to help prevent the putty from drawing out its natural oils and shortening its lifespan. You should also wipe down the sash to get rid of any dirt and dust from the grooves.
Press a small amount into the rabbets, in which the glass will be placed. At this stage, cleanliness is not a factor. Place the new pane into the rabbets, and then move it with your fingers.
If there are any holes in the wood frame around the glass, fill them with silicone caulk before installing the new pane of glass. If the frame has other fastening mechanisms, like L-channels for example, employ a hammer for prying them out from the sash grooves. Inspect the frame for shards of glass that might have broken during removal, and take them out of them prior to continuing. To keep water and pests from entering your home, apply a clear silicone caulk to the frame's bottom edge at the point where it joins floor.