I own a 70-year-old home with a slate roof which has a very steep pitch. We also have what I believe are called "knee walls" in several locations on the 2nd floor. Currently, we have 2 gable vents facing east and west. On the east one, I have an attic fan which comes on when the temp gets to at least
- Unfortunately, the fan is much bigger than the vent opening and so does little to evacuate any air.
I am thinking about soffit vents, but I'm worried about the damn knee walls. There's no insulation on them and getting back there is impossible without tearing the wall down. I mainly want to eliminate the ice dams in the winter and the high attic temps in the summer.
TIA m