Painting sash windows from the inside involves a specific procedure to ensure all surfaces are accessible and the window remains functional. Here's a step-by-step guide:
Steps for Painting Sash Windows Internally
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Prepare the Windows: Before you start painting, ensure the windows are clean and dry. Scrape off any loose or flaking paint, and lightly sand the surface to create a smooth base for the new paint. Fill any cracks or holes with wood filler, let it dry, and sand it smooth.
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Free the Sashes: If the windows are painted shut, carefully score the paint along the edges of the sashes with a utility knife. Gently tap along the edges with a hammer and putty knife to free them.
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Position the Sashes: This is crucial for internal painting. Slide the outer sash down slightly, and raise the inner sash a bit. This creates gaps at the top and bottom, exposing the areas you need to paint. Ensure you don't move the sashes too far, as you don't want them to come out of their tracks.
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Paint the Inner Sash:
- Glazing Bars: Carefully paint the glazing bars (the thin strips of wood dividing the glass panes). Use a small brush and take your time to avoid getting paint on the glass.
- Inner Sash Surfaces: Paint all accessible surfaces of the inner sash, including:
- The top surface of the meeting rail (where the two sashes meet).
- The underside of the bottom rail.
- The visible sides of the sash.
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Allow to Dry: Let the paint on the inner sash dry completely before moving to the next step. This is crucial to prevent smudging and sticking.
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Reposition the Sashes: Once the paint on the inner sash is dry, carefully move it to a new position. This might involve sliding the outer sash up a little and the inner sash down, exposing the unpainted areas of the outer sash.
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Paint the Outer Sash: Now, paint the exposed surfaces of the outer sash, following the same procedure as with the inner sash. Pay close attention to the meeting rail and any other areas that are now accessible.
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Allow to Dry Completely: Let the paint on the outer sash dry completely before attempting to close the window.
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Final Touches: Once everything is completely dry, carefully run a utility knife along the painted edges to prevent the sashes from sticking together when you close them. Clean any paint splatters on the glass with a razor blade scraper.
Important Considerations
- Paint Type: Use a high-quality exterior-grade paint that is suitable for wood. Gloss or semi-gloss finishes are generally recommended for their durability and ease of cleaning.
- Ventilation: Ensure adequate ventilation in the room while painting to prevent the build-up of fumes.
- Masking: Use painter's tape to mask off the glass panes and protect them from paint splatters.
- Safety: Wear appropriate safety gear, such as gloves and a mask, to protect yourself from paint fumes and chemicals.
- Sticking: If the windows still stick after painting, try rubbing wax or silicone lubricant along the tracks.
