Steve offers a screencast explaining why buildings with similar R values can show such wide differences in energy performance. To learn more from Steve, visit

14 Responses to “insulation value”

  1. Paul CF April 5, 2012 at 5:00 pm #

    This is a great and easy to understand video that captures the key elements and significant advantages of SIPs. Thanks for putting this together!

  2. A Concord Carpenter May 7, 2012 at 5:17 pm #

    Well done Steve

  3. kjbaert August 9, 2012 at 1:38 am #

    so if not using spray foam how do you seal gaps between the foam and the wooden studs? such as an acoustic sealant or tape?

  4. Maia Izaguirre October 18, 2012 at 6:17 pm #

    Hello there! Thank you for this helpful video. By the way, I hear many people keep on talking about Xobotano Home Energy (do a google search), but I’m not sure if it’s good. Have you thought about this alternative home energy known as Xobotano Home Energy? I’ve heard some great things about it.

  5. TheEruditepolymath October 29, 2012 at 9:09 pm #


  6. Vicki Kleinschrodt November 13, 2012 at 8:40 pm #

    Hey There! Thanks a lot for this helpful video. By the way, I hear lots of people keep on talking about Xobotano Home Energy (do a google search), but I’m not sure if it is really good. Have you ever tried this alternative home energy called Xobotano Home Energy? I have heard several awesome things about it.

  7. TheTerry2good January 16, 2013 at 1:39 am #

    add some pep to the lesson I fell asleep

  8. Steve Maxwell January 16, 2013 at 2:03 am #

    Hi TheTerry2good,
    Yes, you’re right. The pep level seemed fine when I reviewed it after shooting, but my tone seems pretty dull as I watch it now. I’ll get livelier next time I do a screencast.
    Thanks for watching,

  9. MrTaylorcraft February 3, 2013 at 3:10 pm #

    Your pep level was fine. Some people just want to bring people down and cause problems. The information was second to none. Thank You!

  10. monkeeyme February 14, 2013 at 3:59 pm #

    Thanks good info.
    So what you think is better: Radiant Barrier or Fiberglass Insulation?

  11. waterwart March 15, 2013 at 9:09 am #

    What I got out of it was it sounded like you were “selling” foam as the best insulator. But what about some of those other things about it? I heard some foams will shrink and pull away from the 2×4 framing after a while. This leaves voids where there is no insulation. AND I heard the stuff will disintegrate and turn into dust around the edges after a while. What about those rumors?

  12. Steve Maxwell March 15, 2013 at 11:30 am #

    Good Morning Waterwart,
    Thanks for your note.
    I’m not selling anything, just reporting on the facts behind the performance differences between similar R values of insulation. As for foam pulling away from studs, that sometimes happens, but only within the first couple of weeks after application. That’s why I always let the foam sit for a while, then go back over it with a hand-held can of spray foam and fill any gaps that have developed. It’s not a big deal, but just makes things perfect.

  13. zmosoly1 May 4, 2013 at 6:13 pm #

    thanks for sharing .information of great value

  14. Renovate and Build Green August 12, 2013 at 12:59 am #

    thank you,