4 ms·
It's a bit of a kludge but I've used exterior storm windows with old windows. It can make a big difference but doesn't compete with the efficiency of a modern
by onlypassingthru 3y ago
It's a bit of a kludge but I've used exterior storm windows with old windows. It can make a big difference but doesn't compete with the efficiency of a modern vinyl argon filled double pane.
- VHRanger 3y agoIt actually does if your seals are good. Argon sealed double panes aren't magical in terms of R-values.