How to improve insulation in the corners of the house?
I live in a 1987 bi-level house and recently a thermal scan showed some cold spots in the corners and between the walls and ceiling and floor (as in pictures attached). However those spots are very difficult to access from the attic due to the slope of the roof, on top of that the attic has blown-in cellulose installed a few years ago, so it’s almost impossible to navigate there for me. I am just curious if there is any method to improve insulation from inside the house instead of from the attic. Any other suggestions are very welcome! Thanks!
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