Our master bedroom is a lot colder than any other room in the house. From what I can see, the patio door is leaking in a lot of cold. We don't want to replace the entire patio door right now. Looking for something quick/inexpensive to last us through the winter.
I have uploaded some pictures of the door and what the temperature looks like around the room and near the door: https://imgur.com/a/2D87YR4.
The edges of the windows in other rooms have similar numbers but they just have one window so its less of an issue. Maybe whatever solution I can find for the patio I can use for the other rooms too.