I have a 1920s home with an unfinished attic here in snowey Massachusetts. The attic ceiling is un-insulated, with exposed 6" rafters and an asfault tile roof. I was warned about ice-dams and how impropper insulation will lead to a destroyed roof. The problem is I have no idea how to prevent ice-dams -- this is something new to me.
With the wisdom of the community, how can I set up my insulation propperly to prevent icedams?
- Is spray on closed-cell foam my best bet?
- Do i need to cut soffit into the attic roofline? Is there something else I should do
- Any other tips or tricks?
Thank you everyone in advance for the input!