Recent Comments and Answered Questions on Green Building Advisor

  • Martin Holladay | Apr 08,2009 10:45 AM EDT
    Edward, A database of vinyl recyclers can be found here: Directory of Vinyl Recyclers. There appear to be two recyclers in ...
  • Beth Bodenstein | Apr 08,2009 09:50 AM EDT
    Our association is building a green showcase house for our Fall Parade of Homes. This article gave me some great ideas on marketing it. It's especially appropriate in light of today's announcement ...
  • Alex Cheimets | Apr 07,2009 11:24 PM EDT
    Attic is 60% living space with 3 bedrooms and a bathroom. The balance are crawl spaces. The attic is not ventilated. At the risk of mis-stating the consultant's report.......they recommend a ...
  • David Cook | Apr 07,2009 10:36 PM EDT
    I'm in south central Pa, not far from you, and I think a heat pump can do that COP. Geothermal ground source heat pumps can be upwards of 4-5 COP. You may use more electricity at times at lower ...
  • Ann Edminster | Apr 07,2009 07:49 PM EDT
    Great list, Annette! Lately I've been thinking a lot about a perspective that's a bit of a maverick in an industry that's pretty unified behind "efficiency first" -- namely, sometimes in ...
  • Glenn Summers | Apr 07,2009 08:00 AM EDT
    Murielle, As I understand your question, waterproofing this deck in order apply thin set and tile is all you want to do? Waterproofing the concrete should be accomplished using a product called ...
  • Kathi Petersen | Apr 07,2009 06:09 AM EDT
    As a person who uses building materials at work every day, I am definitely very interested in how toxic they are, both for the finished product that ends up in a customers home and for the sake of ...
  • Grant Dorris | Apr 06,2009 09:54 PM EDT
    Al, You can also visit http://www7.ncdc.noaa.gov/IPS/ for complete climatological data for your area.
  • Susie Collins | Apr 06,2009 06:43 PM EDT
    The toxicity of modern building materials is a health issue for everyone, not just people with Environmental Illness and/or Multiple Chemical Sensitivity (MCS). I agree that the regulation needs ...
  • Nils Davis | Apr 06,2009 04:44 PM EDT
    (A little late to the discussion here) I completely agree that energy efficiency is our most critical issue right now. But I don't agree that behavior trumps technology - as I posted
  • Dave Brach | Apr 06,2009 04:38 PM EDT
    I'm not saying the USGBC should get into the business of designing energy models. I'm saying Energy efficiency ratings shoud be based on energy use. There is no extra cost to consider. Let's ...
  • Martin Holladay | Apr 06,2009 04:29 PM EDT
    Brent, You're quite right: the real-world performance of a wall assembly includes many factors not captured by an R-value test designed to calculate the R-value of a piece of insulation. ...
  • Brent Eubanks | Apr 06,2009 03:51 PM EDT
    You said Some manufacturers of radiant barriers falsely claim that R-value measures only conductive heat flow while ignoring the other two heat-flow mechanisms, convection and radiation. In ...
  • | Apr 06,2009 02:42 PM EDT
    For what purpose? The number of sun days per year is an almost meaningless number. What's more important for most applications is the intensity of solar radiation, the monthly solar availability, ...
  • GERALD RAND | Apr 06,2009 02:40 PM EDT
    What was the use of the attic space? I assume it was not ventilated.
  • | Apr 06,2009 02:15 PM EDT
    You started a new thread instead of responding in your existing thread. But the answer is yes, if the shed roof vents into the main roof, you'll be better off maintaining that intake vent, ...
  • Robert Alf | Apr 06,2009 01:55 PM EDT
    Henry has excellent points that few think about. This merely points out however that no single option necessarily makes sense without detailed analysis and comparing to other options. I would ...
  • Dorothy Howard | Apr 06,2009 01:49 PM EDT
    I've used Crossfield Products 'Dex-o-tex Barrier-Guard' over 'Dex-o-tex A-81 Underlayament' on a number of projects with conditons just like you describe. The A-81 is floated to create the slope ...
  • Mark Piepkorn | Apr 06,2009 01:14 PM EDT
    There's a bunch of high-level back-and-forth, pro and con, to inform this discussion at ...
  • Martin Holladay | Apr 06,2009 12:29 PM EDT
    Al, Insolation maps are available on many Web sites. Here are ...
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