How to keep the plastic window insulators sealed when the window has a sill

sealingwindowswinterizing

Last winter I covered my windows in my apartment with a window sealing kit so keep out any drafts. The winds and temperatures are pretty extreme around here and the plastic would peel away from some sections.

The windows are inset into the wall and don't have any trim around them besides at the bottom where the sill sticks into the room. This creates a problem because I don't have a good way to seal around the sill so I had to just stick the plastic to the top of it. The wind and temperature causes the tape to peel up a lot easier in this setup because of the angle the tape is stuck. I don't really see any other way around it.

Any ideas for how I can set this up better to make sure this thing stays completely sealed through the winter?

Window sill (This picture I stole from http://abillco.com/sills-wooden-mdf-pine-oak-window-stained-painted/index.htm)

Best Answer

That sounds like it would work but its involved. I do what you do and use the double stick tape on the flat top of the sill. Then before I shrink the plastic I get normal clear packaging tape and go around the whole window again. I get a lot of draft and condensation and over the years this technique evolved and seems to work.