Recent Comments and Answered Questions on Green Building Advisor

  • John Brooks | Feb 07,2010 08:14 AM EST
    Whenever I mention the use of this type of sheathing on the interior side of an exterior wall I get looks like I have horns coming out of my head. Is this really a dead end road do you ...
  • Martin Holladay | Feb 07,2010 04:37 AM EST
    J. Klingel, The reason many people like in-floor hydronic heat is that they are comparing these floors to uninsulated slab floors. Most of the benefits of warm floors can be achieved by ...
  • Martin Holladay | Feb 07,2010 04:27 AM EST
    J. Klingel, I disagree that wood boilers are the best way to heat with wood. Boilers have the following disadvantages: 1. Because the firebox of a boiler is surrounded by water, it's ...
  • Martin Holladay | Feb 07,2010 04:09 AM EST
    Monica, The sad part of the story is that it makes no sense to install an 8.1-kW PV system — one that probably cost about $60,000 before rebates and incentives — without first implementing much ...
  • Martin Holladay | Feb 07,2010 04:00 AM EST
    Li Ling Young, The question of maximum thickness restrictions for spray foam is complicated and often ignored by code officials. I wrote an article on the question for the April 2008 issue of ...
  • | Feb 07,2010 03:01 AM EST
    i don't understand how your method isn't double stud framing. could you please enlighten me? looked through your site and it was interesting to say the least. i liked some stuff a lot and ...
  • | Feb 07,2010 01:38 AM EST
    Michael, I'm not "lecturing" you - I'm stating the obvious. Statistics are not "facts". Numbers don't tell us anything about the world - they are abstractions (but since Plato, philosophers and ...
  • | Feb 07,2010 01:18 AM EST
    Uriah, You're trying to reinvent the wheel. Double-stud wall homes have been built in many varieties for decades (I've done several) and they are all problematic. You cannot tie the inner wall ...
  • | Feb 07,2010 12:39 AM EST
    Im glad i stumbled onto this discussion. I think ill have to find a copy of that magazine to shore up my designs for the new house i plan to build this year. I too have planned on doing a double ...
  • | Feb 07,2010 12:38 AM EST
    I'm new here, but I don't understand the discussions of wood stoves. Are "stoves" a thing of the past? Surely anyone thinking of installing wood heat is thinking of a wood BOILER, no? Stoves are ...
  • | Feb 06,2010 11:38 PM EST
    Your claims are demonstrably erroneous. It is not my opinion but a fact. You said there is no correlation between actual energy use and modeling projections. I have data that absolutely refutes ...
  • | Feb 06,2010 10:25 PM EST
    You are right Alex, a lot was left on the table for increased efficiency from south facing glass. The .30 SHGC is pitiful for a 2 pane window, the large window manufacturers rule. Hopefully ...
  • | Feb 06,2010 10:22 PM EST
    As the "designer" mentioned in Carl's post or decorator mentioned in a later post I want to set the record straight. I have spent the last 8 years as a nationally recognized designer. "More ...
  • | Feb 06,2010 09:45 PM EST
    Monica, Robert has given a great synopsis for your project, by all means air-seal where you can. My question is why does a house of this size need 2 furnaces? I have always been able to find ...
  • Michael Chandler | Feb 06,2010 08:59 PM EST
    Estimating? Excel informed by data mining from QuickBooks Project management? Excel, Outlook, smart phone (prefer Crackberry but experimenting with Android) I have friends who love Procore and ...
  • | Feb 06,2010 07:27 PM EST
    Monica, Given that there is HVAC equipment in the attic, however well (apparently) sealed, it makes sense to move the thermal envelope and air barrier to the roof plane. But you're quite right ...
  • | Feb 06,2010 07:03 PM EST
    Lucas, I kind of like the Riversong Truss, too. And sheathing it internally - on the load-bearing inner frame - would overcome the resistance of some code officials and conventional builders ...
  • | Feb 06,2010 06:34 PM EST
    Martin, You can call it what you want, but the tested R-value of insulation is in a convectionless environment. That's not necessarily a real world environment, particularly with ...
  • | Feb 06,2010 06:17 PM EST
    Doug, the architect worked with the Solar Company from the start to insure that the new roof was pitched properly and the rafter design was correct to support the number of panels..an 8.1 kW ...
  • | Feb 06,2010 06:15 PM EST
    Graham, That's the problem with your plan. With all the intersecting framing at the eaves (ceiling joists, rafters, wall plates) there's no easy and reliable way to create an air seal other ...
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