I live in an apartment with a window that I want to insulate during the winter. I am currently using one of those shrink film kits and it seems to be working. However, I think there's a chance that there are drafts coming in around the window framing. If so, I may be able to seal the offending gaps myself and/or get my landlord to do it. However, I am wondering whether the following would be a reasonable alternative:
Would it be effective for me to stick the window film to the wall surrounding the window, effectively sealing off a larger area than just the window itself?
I can anticipate three major potential weaknesses of this approach, but I could obviously be totally wrong:
- The tape could have trouble sticking to the wall (maybe I could use stronger tape) or making a good seal (maybe I could use some additional insulation around the borders).
- The large insulated cavity might allow for more convection to go on inside of it.
- My wall might be better than my window frame at losing (conducting? is that the right term?) heat. As a result, now heat can leave my apartment through the route wall outside cavity -> wall inside cavity -> air, instead of wall outside cavity -> window frame -> air. (Maybe I could fix this by using multiple layers of film, one applied to the window frame and one to the wall?)