Help!!! I want to insulate the unfinished portion of my basement. I live in St. Louis, MO. My basement walls are poured concrete. I have about 4 feet above grade and four feet below grade. No water leakage.
I have read the Building Science article. The foil faced foam rated for exposed use sounds great but is very hard to find and the one quote I got was about $100/ 4x8 sheet. I assume the article is referring to "Thermax" by Dow.
I'm really not interested in putting the regular foam up because then I have to drywall.
The perforated fiberglass blankets seem reasonable but I still worry about mold. But this seems to be my only option. I would insulate the top four feet, the above grade portion.
Am I stuck or is there a way out of this? My floors are freezing! I want to do the walls instead of the basement ceiling so I can take advantage of the rising heat. Also, my furnace is in the unfinished portion, and I could hold some of that waste heat in.