Foam Foam Foam

By Lance Manlove, in Green Product

What’s all the talk about foam insulation?  Does it work and what types are there?

Yes, foam is good for residential and commercial construction practices.  The two main types of spray foam are closed cell and open cell foam.  The closed cell foam is a vapor barrier whereas the open cell foam will allow air to pass through.  Closed cell has a better R-Value per inch of application but is more expensive to install.  So where is the common ground?  We have found that a hybrid approach works best for us and keeps the costs down.  In the 2×6 cavity, we spray a 1/2″ of closed cell foam on the back side of the sheathing and then blow in fiberglass batt insulation for the rest of the 5″.  The spray foam creates a great seal to repell any air infiltration and the blown in batts fills the gaps and delivers a great composite R-Value for a 2×6 stick framed wall.  It’s a great idea to also spray foam your band board in a crawl or basement.  The investment will pay dividends year after year and is well worth it.


  1. Joyce Koeneman
    Posted June 5, 2010 at 11:45 am | Permalink

    I attended the session today. I asked about the foam in the attic. I don’t understand the statement above. It seems to contradict what you said today. Do I need to get an energy audit before I do any work in order to get a tax credit? If he is not interested in the foam insulation, does your company take on a small project like this?

    Joyce Koeneman

  2. Rob Wilson
    Posted November 12, 2010 at 6:04 am | Permalink

    what is the R-Value of the wall and ceiling insulation

  3. Posted September 25, 2011 at 7:39 pm | Permalink

    If I understand what you are saying you spray a 1/2 layer of closed cell foam and then 5 inches of regulare insulation.
    Dallas Insulation

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