Unfortunately since these are single pane windows most of the thermal performance issues will be due to the glass. Sealing this gap will help some, but it will be just a drop in the bucket.
Replacing the windows with insulated glass (two pane) windows is ideal. However that will be expensive.
The easiest/cheapest option will be the temporary cling-film type kits you can buy–you won’t be able to operate the windows, but that probably won’t be an issue in the winter. Properly sized/installed storm windows will help some too, and be significantly cheaper than new windows.
bhmnscmm@lemmy.world 7 months ago
Unfortunately since these are single pane windows most of the thermal performance issues will be due to the glass. Sealing this gap will help some, but it will be just a drop in the bucket.
Replacing the windows with insulated glass (two pane) windows is ideal. However that will be expensive.
The easiest/cheapest option will be the temporary cling-film type kits you can buy–you won’t be able to operate the windows, but that probably won’t be an issue in the winter. Properly sized/installed storm windows will help some too, and be significantly cheaper than new windows.