Replacing French Door Glass
Replacing a broken piece of glass on a French door is a relatively simple DIY project. Cleaning the glass, removing trim and molding and then putting in a new pane is all that's needed.
French doors are made of multiple glass panes, which are separated by muntin bars. They are also known as Mullions. They are available in a variety configurations and can include triple-pane glass to increase energy efficiency, cut down on sound and minimize the glare.
How do you replace a damaged glass pane
Before starting, put on gloves made of rubber and safety glasses to protect yourself from any fragments of broken glass that may fall off during the replacement process. Also, work in a garage or an open space and keep children away from the area. It is recommended to remove the window frame from the sill for better access and maneuverability however, you can replace a pane, without taking the entire window out of the 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 holding the window in place. You'll need it to support the new pane.
If you are working with a steel casement windows it could be anchored 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. A paint scraper or a tool like a chisel will work however, if you find that the putty is too difficult to pry out, gradually soften it with a heating gun. The heat gun should be held about one inch from the glass and move it back and forth to distribute the heat. Double-up the aluminum foil and place it on the glass adjacent to it. This will prevent them from breaking due to heat.
After you have removed the old glass, take a damp cloth and wipe the inside of the window sash to remove any dust or dirt. Now you can install a new piece glass.
Take measurements of the width and height to determine the dimension of the glass. Record these measurements and subtract 1/8 inch from each side to create a new piece that fits easily into the door frame. Many hardware stores will cut a piece glass for you if you provide the measurement.
Warm up a few tablespoons of putty and roll it into a 3/4-inch wide rope. Place the putty on the edge of the rabbet. Then, rest the blade of your putty-knife at a 45-degree angle against the frame rabbet. Move the knife along the glass's edge in a straight, smooth line to cut a piece 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 pane in a French-styled door is not only an eyesore but can also pose a security risk. It's easy to replace a pane of glass in a French-style door and it's generally less expensive than replacing the whole door panel. The majority of homeowners can do this by themselves, however professional assistance is available to those who require specific tools or expertise.
Begin by removing any broken or cracked pieces of the frame. Wear safety glasses and gloves to keep glass shards from getting into your eyes or face. Then, clean out the glass opening to remove any caulking or putty used to keep the previous pane in place.
The next step is to eliminate any trim or molding holding the glass in place. It could be difficult to pull the molding off. Wearing protective equipment and having someone help you in prying is a good idea. Label the pieces that you're removing so that you can return them to their original positions.
Once the molding has been removed, you can begin installing the new pane of glass. Find the measurements of the opening for the glass pane and then go to a glass shop to purchase a piece new glass for your French door. You should purchase safety glass for your French door, as it will not break easily in the event of a break.
When you are ready to put your new piece of glass inside the opening, make sure that it is aligned correctly. Apply salford french door hinge repairs of clear silicone caulk on the edge of the glass.
You can replace the molding once the caulk has dried. If the nails that were originally used didn't pull through the molding, you can put new wire nails into the holes created by the old nails. Pre-drilling the holes will stop the nails from splitting through the molding. A well-stocked hardware store has very thin bits that can be used to drill the holes.
Cut a New Pane of Glass
Before ordering a new pane of glass, double-check that the spacing around the frame and the edges of the window are equal. If you see any gaps, you could have to adjust the spring clips or metal triangles that hold the glass in place. It is also important to ensure that the new pane you purchase is the correct size for the opening. If it's too large it could cause leaks and other issues.
The first step is to prepare a work surface. Using a putty knife, scrape away the old compound on both sides of the frame, leaving the wood. If the rabbets have become too rough to smooth with a putty knife gently sand them and then apply an exterior primer. This will prevent the new glazing from drawing moisture from the wood, thereby reducing its lifespan.
Once the frame is clean and ready, warm a handful of putty by kneading until it's soft and malleable. Use the putty knife to apply a thin layer of it to the inside corner of the rabbets, creating an even bed for the glass to rest on. Repeat the process for the remaining exposed edges.
After the putty is dry, remove any remaining metal glazing points from the grooves within the sash. Before you attempt to remove them, put on goggles with safety features to protect yourself from glass shattering. A heat gun on an low setting will help you warm up and loosen the steel so that you can stretch it out of the frame with pliers.
Place the glass on the table to test fit. Adjust the glass as necessary before you secure it with spring clips or triangulars made of metal. Check that the distance between the frame and the glass is even and uniform across all sides. Also, examine the movement of the sash to make sure that the new pane will not interfere with opening or closing the window. Speak with a restoration specialist should you encounter any issues during the installation. They can assist you to fix and preserve your historic home.
Install the Pane of Glass
Test-fit the glass pane to ensure it fits properly before installing it. Take measurements of the width and height of the window opening by measuring from the outside edge of the L channels. Subtract 1/8 of an inch from each measurement to determine the size glass you need. It will be easier to install the pane when you are a little smaller than. This will also allow for seasonal expansion and contraction of the frame. You can bring your measurements to a hardware store or home centre and they will cut a piece of glass for you. You can cut the glass yourself, if you have a large sheet available.
After removing the glass pane, clean the window sash grooves. Remove any metal glazing points used to hold the old pane. A paint scraper that is a pull type or a chisel will work to accomplish this task. If the grooves have lots of hardened putty in them it is possible to gradually soften it with a heat gun. Cover the moldings and windows with aluminum foil in order to protect them from heat.
Scrape and sand the rabbets on which the glass is, and then brush an exterior primer on them to help prevent the putty from absorbing its natural oils and reducing its lifespan. You should also wipe down the sash to get rid of dust and dirt from the grooves.
Knead a tiny amount of putty until it is warm and flexible and then press it into the rabbets where the glass will go. The appearance of the glass isn't crucial at this stage. Make sure to press the new pane into the rabbets and then move it with your fingers.
If there are holes in the frame of wood around the glass, fill them with silicone caulk prior installing the new pane of glass. If the frame has any other mechanisms for fastening like L-channels, you can employ a hammer for prying them out from the sash grooves. Check the frame for glass shards that may have broken free during removal, and remove them before continuing. To prevent pests and water from entering the house, apply a clear silicone caulk to the frame's bottom edge where it meets the floor.