How do I weatherproof old aluminium windows?
by
Jody Jobson
My house has several XL aluminium windows, I've struggled this winter to keep cold air out, there's a constant draft
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Lowe’s sells this shrink wrap kit that you apply the sheets to the framing of the window then use a hair dryer to shrink it tight, I’ve used it and it works great
You could make a plexiglass storm window in a frame slightly larger than the window. Use double sided tape to install for winter and remove in summer! Or....use the shrink wrap that Sca suggested . It does work well.
They should have a felt-like gasket around the edges, between the glass and it's frame. Also caulking is used between the window and it's frame. If caulking is worn out you can replace. Just go along the edges of frame inside. Run caulking along edge of window sill and then smooth with you finger to fill in holes and cracks. Easy way to find cracks is to darken inside of room and look closely around edge of window sill for any day light coming in.
Over all the easiest solution is the plastic that Sca suggested.
Heavier drapes help block the cold too. Make sure rods go out beyond edges of window sills. I remember Grandpa making wood strip frames covered in plastic to go over outside of windows in winter and then take down in summer. Paint the strips to match siding.