I am insulating my detached garage/workshop. It will only be heated when I am working out there but I might keep a small heater on when the temp really drops to take a edge off the extremes.
I have a ton of air coming in through my foundation which is open to the inside of the garage. I plan on attaching some treated wood to cover the rest of the top of the exposed block. I would like to do something to slow/stop the air from coming through the blocks before I cover things up. What are my options? Am I limited to just foam or would fiberglass be ok? I have a bunch of scrap pieces leftover from the walls.
It's a northern Ohio climate.