We decided to go with spray foam insulation and fiberglass blown when we added a 48x54x16 barn to our property. Despite more than doubling our heated area, our heating bill has only gone up by $75 per month.

We are thrilled with our decision to insulate our house with closed cell foam. The cost of heating our 5000 square foot house is now lower than the cost of heating our 24′ pool during the spring.