Inspect the window: Check for any visible gaps, cracks, or damaged weatherstripping around the window frame and sash. Look for signs of air leakage or drafts when the window is closed.
Apply weatherstripping: Replace or add new weatherstripping to seal any gaps between the window frame and sash. Self-stick vinyl foam weather seal can be used to fill large gaps. Measure the distance between the bottom of the window opening and the bottom of the raised sash, then cut the weatherstripping accordingly.
Use draft stoppers: Place a draft stopper along the bottom of the window sill to prevent drafts from entering under the sash. You can purchase a draft stopper or make your own using materials like rice, lentils, or popcorn kernels.
Seal cracks with nail polish: If you notice any small cracks in the window glass, you can temporarily seal them with clear nail polish. This can help reduce air infiltration until more permanent repairs are made.
Consider window film: Applying thermal insulating film to the window glass can provide an additional layer of insulation and reduce drafts. Follow the manufacturer’s instructions for proper installation.
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