Replacing a Broken Side of a Double-Pane Window: A Comprehensive Guide

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Replacing a broken side of a double-pane window can be a challenging task, especially if you are dealing with a sealed unit. However, with the right tools and steps, you can effectively repair your double-pane window. This article will guide you through the process, from the initial safety precautions to the final installation.

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Tools and Materials Needed

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To replace a broken side of a double-pane window, you will need the following tools and materials:

r r r Safety goggles and gloves to protect yourself from glass shardsr A utility knife or glass cutter for cutting through glass and sealantr A putty knife for prying glass piecesr A screwdriver if necessary to take the window sash outr Replacement glass or an insulated glass unit (IGU) for the damaged paner Glazing compound or silicone sealant for a weather-tight sealr A measuring tape for accurate measurementsr A caulk gun for applying sealantr Wood blocks or shims to hold the new glass in placer r r

Steps to Replace the Broken Side

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Safety First

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Start by putting on your safety goggles and gloves to protect yourself from any broken glass. This is crucial to ensure your safety while working with glass and other tools.

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Remove the Window Sash

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Depending on the type of double-pane window you have, you may need to remove the entire window sash from the frame. This often involves:

r r r Unscrewing or unclipping the sash to detach it from the frame.r If it is a sliding window, you may only need to lift it out of the track.r r r

Remove the Broken Glass

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To remove the broken glass, you will need to:

r r r Use a utility knife or glass cutter to cut through any glazing compound or sealant around the broken pane.r Be careful when removing the remaining glass pieces. If the glass is stuck, gently pry it away with a putty knife.r r r

Prepare the Frame

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Before installing the new glass, clean the frame to remove any old adhesive or debris. Also, check for any damage to the frame itself. If necessary, repair any cracks or decay.

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Measure for Replacement Glass

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To ensure a proper fit, measure the dimensions of the frame where the glass will be installed. Additionally, note the thickness of the existing glass.

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Order Replacement Glass

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Once you have the necessary measurements, you can order a new insulated glass unit (IGU) from a glass shop or home improvement store. Provide them with your measurements to get the right size and thickness of the replacement glass.

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Install the New Glass

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With the new glass in hand, place it in the frame and use wood blocks or shims to hold it in place while you secure it.

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Seal the Edges

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Apply glazing compound or silicone sealant around the edges of the glass to create a weather-tight seal. Smooth the compound with a putty knife for a clean finish.

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Reinstall the Window Sash

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Once the sealant has cured, reattach the window sash to the frame. Make sure everything is secure and the window operates smoothly.

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Cleanup

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Dispose of any broken glass and clean up your work area.

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Additional Tips

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If you are not comfortable performing this task yourself, it is recommended to hire a professional glazier. Additionally, if the entire double-pane window is fogged or has lost its insulating properties, it might be more cost-effective to replace the entire unit rather than just one side.

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By following these steps, you should be able to effectively replace the broken side of your double-pane window.