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I see you are in Calgary, Hmmm -16c or 3F there at the moment. You really can't compare the temp of a insulated wall to a double pane window, heavy window coverings can help. I think 3/4 plywood is equal to about R1, it will take a pretty good window likely triple pane to make much difference. If it feels different then years ago possibly feel for air leaks around the window on a windy day, with your IR thermometer check the temp of the drywall right by the window trim it really should not change if it does you could have leaks around the window. How well sealed is the house are you using a HRV?
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Last edited by 908/930; 02-03-2022 at 08:15 PM..
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