GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Audio Play Icon Headphones Icon Plus Icon Minus Icon Check Icon Print Icon Picture icon Single Arrow Icon Double Arrow Icon Hamburger Icon TV Icon Close Icon Sorted Hamburger/Search Icon

Community and Q&A

What percentage improvement can I expect in my electric bill if I have spray foam insulation installed?

Delilla Harts | Posted in Energy Efficiency and Durability on

What is the difference in spray foam and blown in insulation? In my area the price difference is considerable and I just need to know if it would be worth it.

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.


  1. GBA Editor
    Martin Holladay | | #1

    No one on this web site will be able to answer your question.

    A few will be able to guess, however, if we know more facts:

    1. Is this a new house or an existing house?

    2. If it is an existing house, describe your existing insulation.

    3. Are you talking about floors, walls, or ceilings?

    4. If this is an existing house, describe your typical electric bill.

    5. Your house has how many square feet?

    6. Where are you located?

    7. What fuel do you use for heating?

    8. Does your house have air conditioning?

    9. Describe your windows.

  2. Dan Kolbert | | #2

    How much better mileage does a small car get?

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |