Preventing ice damming

Hey all again. Painfully slow progress on my home reno. I’m in Northern Ohio in zone 5. I’ve foam sealed in vent baffles and have a thick butyl membrane under… Hey all again. Painfully slow progress on my home reno. I’m in Northern Ohio in zone 5. I’ve foam sealed in vent baffles and have a thick butyl membrane under…Read MoreGreenBuildingAdvisor