Worth it to improve old aluminum windows?
We have a house full of aluminum sliders from the 60s. At some point, operable aluminum storms were added. They have a number of issues:
1. No air sealing around rough opening at time of install, so they’re drafty.
2. Some of the frames sweat a lot during winter, degrading the stained wood casing.
3. Some fog on the inside of the windows. Others fog on the storm window side.
Of course I could replace the windows with new double panes made of vinyl, fiberglass or wood, but I’ve also heard that, when in good shape, old windows with storms perform almost as well and upgrading is a waste.
And I wonder if a little bit of elbow grease to improve what I already have would achieve the same results as replacing.
1. Pull the trim and air seal the rough openings. Or, even easier, apply a clear caulk to all the interior casing joints.
2. Caulk all the glazing with a silicone caulk to fix any air seepage there.
3. Add some weather stripping to the fixed side of the slider pane to better seal that joint.
4. Pull the storms and replace the gasket between the storms and the main window.
Any other ideas? Am I on the right track?
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