Recent Comments and Answered Questions on Green Building Advisor

  • Malcolm Taylor | Jun 20,2018 09:31 PM EDT
    Dan and Steve, Don't you find it completely ridiculous that we don't have free access to the laws we are expected to follow? I paid over $300 for a hard copy of the latest edition of the code ...
  • David Goodyear | Jun 20,2018 07:59 PM EDT
    At the time we designed the house, grid tie was illegal. I won’t get into the politics of this. Also there are no solar incentives. At about 12000 kWh per year for total energy usage we would ...
  • Martin Holladay | Jun 20,2018 07:51 PM EDT
    Kenneth, Unfortunately, a large group of Americans -- including Fox News, the man in the White House, and the new head of the EPA -- share your distrust of science. I find that sad. Scientific ...
  • | Jun 20,2018 07:43 PM EDT
    Martin, I was thinking of finding some kind of flexible caulk to use as a first layer to give me a really good seal at the bottom of my "trench" for maybe an inch or two deep? Alternatively, I ...
  • Peter Engle | Jun 20,2018 06:51 PM EDT
    kerosene heaters for emergency heat are another big source of CO. I personally responded to at least 6 CO detector calls from friends and neighbors after Sandy. All were legitimate hazards, and ...
  • Peter Engle | Jun 20,2018 06:48 PM EDT
    The article doesn't mention one of the best dual uses - livestock grazing. Grass grows well under the panels. As they noted in the article, crops require less water when partially shaded, and ...
  • Peter L | Jun 20,2018 06:43 PM EDT
    Martin, I believe it would be a close $$ call. Installing furring/vent channels and then throwing on another layer of OSB on top of the roof SIPS with a shingle roof vs. a standing seam metal ...
  • Kenneth Gartner | Jun 20,2018 06:42 PM EDT
    Martin, I know you are passionate and knowledgeable and have repeatedly offered me good building advice over the last two years. Likely, you have seen folks who are inept, moneygrabbing, ...
  • Dana Dorsett | Jun 20,2018 04:27 PM EDT
    When comparing the cost of the Lunos e2 to fully ducted systems you have to consider the cost of the ducts as well. The FV-04WS2 is exhaust-only ventilation, but at just 20cfm it doesn't add up ...
  • Dan C | Jun 20,2018 04:17 PM EDT
    Hi steve, no worries buddy. Sorry to hear that your wall assembly got turned down. I don't want to dive too far down the rabbit hole that is NBC here on GBA, but in my interpretation, section ...
  • Dana Dorsett | Jun 20,2018 04:10 PM EDT
    Do you have an attached garage and a fossil-burner car? Do you live on top of a coal seam in the local geology? Do you bathe by massive candle light? ...
  • | Jun 20,2018 03:48 PM EDT
    Lunos e2 looks like it would work but expensive and the Panasonic FV-04WS2 looks like a good price but not very efficient. Is there any other options low CFM‘s and good heat recovery for a good ...
  • Martin Holladay | Jun 20,2018 03:36 PM EDT
    Andrew, Note the other possibilities mentioned in the article I linked to -- for example, a European air barrier membrane like Solitex Mento (a product available from 475 High Performance ...
  • Andrew Southam | Jun 20,2018 03:25 PM EDT
    Thanks Martin! I'm going to be using T&G so it will have to be the Grace Ice and Water Shield. Appreciate the advice. Andrew
  • | Jun 20,2018 03:21 PM EDT
    Thanks all. Peter, I think you hit the nail on the head. I have even looked in Puerto Rico, thinking I could find some guys down there who could come up here easily to teach my local guys. I ...
  • Ed Dunn | Jun 20,2018 03:11 PM EDT
    Hard to understand that with the low cost of solar, why would any house, especially a passive house, need to create carbon in our atmosphere for heat. I am running both my Nisan LEAF and electric ...
  • Martin Holladay | Jun 20,2018 03:01 PM EDT
    Peter L, If you install vent channels above a SIP roof, you can still install asphalt shingles. All you have to do is install roof sheathing (plywood or OSB) above the vent channels. It's ...
  • Martin Holladay | Jun 20,2018 02:56 PM EDT
    Gonzalo, I don't think you can seal a 3-inch wide gap, 13 inches tall, with caulk. My guess is that you'll have to fill the trench full of two-component spray foam, and depend on some type of ...
  • Peter L | Jun 20,2018 02:55 PM EDT
    Bob, I believe one of the main reasons the SIP industry doesn't want to make venting "Mandatory" is because it would cut down on SIP sales. Once you make it mandatory to vent the decking, you ...
  • Bob Irving | Jun 20,2018 02:32 PM EDT
    Several people have blamed "imperfect air sealing of panel seams" But I suggest that the problem is a result of a typical installation. When I built timber frame/SIPS houses, and after we had ...
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