Here is a good website to reference for foam insulation:
http://energy.gov/energysaver/types-insulation
Types of Liquid Foam Insulation
Today, most foam materials use foaming agents that don't use ... read more
Check seals on doors & windows. Replace single pane windows with newer products. Check the attic for insulation. Loose fill, blown in insulation is the best. Make sure to seal any spots where ... read more