How do I Stop Cold Transfer of Metal Window Frames?
- 1). Seal cracks between the metal window frames and window casings with caulking to stop drafts. Apply caulking around the window frame in areas that allow a draft to significantly increase the window's r value, or its measurable ability to resist heat loss. Check for drafts by closing all windows and doors on a cold day, and turning on all suction fans. Run your bare hand around the window frames to feel the drafts.
- 2). Put weatherstripping around the joints of metal window frame where the window slides. Use material that is thick enough to prevent air leaks, but thin enough to allow the windows to freely slide. Peel the plastic backing off the weatherstripping that covers the adhesive and stick the strips in place between the moving panels and stationary frames for insulated windows.
- 3). Hang curtains or drapes that surround the window casings around metal window frames. Hang the window covering against the wall so that air does not circulate in over the top of the rod, or down under the bottom hem of the draperies. Drapes and curtains that cut off air circulation between the window and the room create a gas barrier to seal off conductive heat loss. Hanging drapes as such allows them to act like double-pane windows by letting the cold into the gas barrier, but not letting it pass through to the room. The barrier does an excellent job of saving heat despite the lack of an energy-efficient window behind it.