I own a 10 year old house in the Midwest, and the master bedroom is located on the second floor. In fact, it's the only room up stairs. A photo is attached below. The master suite is centered on the second floor, and bordered by attic space. I have great access to both sides and found that it is insulated, however it's freezing in the winter and warm in the summer.
Would applying house wrap to the area that I can get to help at all?