Will using spray foam insulation make my home warmer?

On the basis of increasing warmth using the same level of fuel and comparing spray foam to rolled or blown-in insulation, the answer is “yes” as you’ll have less air and heat loss. When comparing use of fuel in accordance to air loss when comparing fiberglass products to spray foam, it has been tested and noted that close-cell spray foam fiberglass insulation offers 25%-40% more ‘R’ value and offers significant advantages in gap filling and air loss control.  The net gain of a tighter seal and higher ‘R’ value presents the opportunity of less fuel usage, which in turn can save a Maine home with 1,800 square feet around $447/year in fuel costs.

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