Recent Comments and Answered Questions on Green Building Advisor

  • Chris Otahal | Jun 02,2009 06:14 PM EDT
    Actually, the 4'x8' foam panels are applied horizontally. In between each row of 3" thick foam is a double 2x4 'band', screwed into the studs. So basically every 4', there's a horizontal band ...
  • Rob Moody | Jun 02,2009 05:53 PM EDT
    Chris attached furring strips to the corner framing assembly. I'll try to get a picture of this next time I'm there.
  • Rob Moody | Jun 02,2009 05:51 PM EDT
    Good catch. The detail is drawn with furring strips offset from the studs, but I saw on site that he in fact anchored them into the studs. We actually caught just a couple of spots where the ...
  • John Brooks | Jun 02,2009 05:50 PM EDT
    Looking at the "Jamb and Corner Detail" drawing again the furring strips in the corners apear to be fastened only to the foam?
  • John Brooks | Jun 02,2009 05:43 PM EDT
    Looking at the "Jamb and corner detail" drawing... I am surprised to see that the furring strips are attached only to plywood and not anchored to the framing.... cor-ten siding sounds heavy and ...
  • David Neiger | Jun 02,2009 05:29 PM EDT
    It is my understanding that in order to take this credit, the following requirements must be met: 1) the professional must be credentialed as "LEED AP Homes" under the new LEED AP+ ...
  • Ann Edminster | Jun 02,2009 03:56 PM EDT
    The EPP table in MR2.2 was developed by the Materials & Resources Technical Advisory Sub-committee for LEED for Homes, based on their collective years (many) of experience in residential green ...
  • Alex Wilson | Jun 02,2009 02:34 PM EDT
    Responding to John's question: It's a lot easier to insulate electric storage water heaters than gas-fired models--because of the requirement for air flow into gas water heaters (for combustion). ...
  • Martin Holladay | Jun 02,2009 01:26 PM EDT
    Lucas, Among the tankless water heaters designed for use with solar hot water systems is the Bosch AquaStar Model 1600PS. According to Bosch marketing materials, "This heater is specifically ...
  • john mahoney | Jun 02,2009 12:55 PM EDT
    Many of us have been inspired by Michelle as a pioneer in our industry. While this is an unfortunate result to a very worthwhile endeavor, there are lessons to be learned that can help us succeed ...
  • malcolm campbell | Jun 02,2009 12:53 PM EDT
    The Reuse credit is one of the underutilized credits. It is hard to economically justify with so many other easier to obtain credits to choose from. It is my observation that many in the LEED ...
  • Luke Morton | Jun 02,2009 12:09 PM EDT
    Last time I checked with some tankless folks at a trade show, their products didn't play nice with solar preheated water. For my clients who have chosen tankless, the value statement is less ...
  • John Brooks | Jun 02,2009 11:30 AM EDT
    Alex, I have noticed some electric wh tanks that are extremely well insulated.. but not gas? Any thoughts?
  • John Semmelhack | Jun 01,2009 08:40 PM EDT
    ...biggest difference I've come across so far is in how the PHPP treats windows and thermal bridges. For HERS ratings, window performance values are taken from the NFRC rating for a standard size ...
  • John Semmelhack | Jun 01,2009 08:30 PM EDT
    Brian K. - Rob M. clarified in an earlier response that it was the Cooling Design Load, not the Annual Cooling load that was larger than the heating side. Regarding the Passive House Planning ...
  • Scott Dwire | Jun 01,2009 04:19 PM EDT
    We are just wrapping up our first LEED-H with anticipated gold certification, but I was at the NAHB Green in St. Louis when Heather's House won green home of the year award and LEED-H had not been ...
  • Daniel Morrison | Jun 01,2009 03:19 PM EDT
    So the tips aren't exposed. Problem solved?
  • John Meyer | Jun 01,2009 03:12 PM EDT
    Looks to me like the long spikes would be an invitation to frost build up on their tips that penetrate the foam board.
  • Martin Holladay | Jun 01,2009 05:22 AM EDT
    Katrin, Thanks very much for your post. I really appreciate the fact that you have taken the time to address these issues. Here in Vermont, since the early 1990s, builders of superinsulated ...
  • Michael Chandler | Jun 01,2009 12:19 AM EDT
    The hybrid heating systems just replace the electric emergency heating strip that is used for back up in most heat pumps with a small propane or natural gas burner. They don't do anything to ...
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