When the sash chords are removed, the sash should be free enough for you to completely remove it. Once you have removed the stop, you can pick the sash up slightly and tilt it inward enough to remove the sash cord from the sides of the sash frame. Most stops are screwed (not nailed) into place, so you must remove the screws to remove the stop. Stops are wood strips that are secured to the window frame that prevent the sash from falling inward. Double-hung sashes are held in place by stops. If you have a double-hung window, removal is more complex.If you have a casement window, all you need to do is remove the hardware and hinges.Depending on the type of window you have, removal can be simple or complex: If you have just one broken pane, you can remove the glass and reglaze the affected area while the window is in place. If you need to remove old glazing compound, the procedure will be quicker, safer and easier if you take the window sash completely out of its opening. If you have just a few minor areas where the glazing compound is loose or cracked, you can remove those sections and re-glaze right up to the old compound. If this is your situation, remove all of the old compound and start from scratch. If you have a lot of loose pieces, it won't be long before the rest of it comes loose. Many house and building owners remove only glazing compound that is visibly loose. This 30-year life depends almost entirely on how well the paint on the sash and the glazing compound has been maintained. If glazing compound was properly installed around the glass of your windows, it should last 30 years. These panes are in turn divided by wood muntins. ![]() Divided light means multiple panes of glass in a window sash. Many old and historic windows have a true divided light muntin. Glazing compound is always on the exterior side of a windows sash. The first thing you should do is establish the current condition of the glazing compound on your windows or wood storms. Step 1: Assess the Condition of Your Glazing Compound Acrylic latex caulk containing silicone (not 100% silicone).Replacement glass panes for broken glass.Replacement window glass cut to size (if a glass pane is broken).Glazing compound with boiled linseed oil (not soybean oil).To repair the glazing compound on your windows, you will need to gather the following tools and supplies: Make sure the glass is 1/8-inch smaller in both directions to allow the glass to expand and contract as temperatures change. These sashes have the wavy cylinder glass to match your old wavy glass. You can also ask local window replacement companies if they will give you some historic window sashes that they would usually take to the dump. Double-strength glass is the best choice for matching the thickness and weight of the original glass. If any of your windows have broken or missing glass pieces, you will have to choose replacement glass. These compounds take up to 28 days to cure for painting. Beware of glazing compounds made with soybean oil. This type of glazing compound will cure enough to paint within 24 hours. Always use a glazing compound with boiled linseed oil. Glazing compound comes in cans you can purchase in most paint stores, hardware stores and full service lumberyards. Choose the Right Glazing Compoundīefore you install new glazing compound on any window, make certain you choose the right compound. Failed or missing glazing compound is a significant cause of energy loss in any window. The glazing compound seals the wood, helps hold the glass to the sash and sheds water away from the wood. Your window maintenance practices should include repairing the glazing compound that holds the glass window panes in their wood frames. An inexpensive way to improve the energy efficiency of the windows in your historic house or building is to keep up on regular maintenance.
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