Recent Comments and Answered Questions on Lakesideca Advisor

  • | May 25,2018 11:20 AM EDT
    Martin, Many thanks for the quick reply! The project is Zone3 near Wilmington, North Carolina, where I believe R-30 is the required insulation value. R-38 would be accommodated if ...
  • Malcolm Taylor | May 25,2018 11:07 AM EDT
    Michael, The construction boom has meant a lot of delays waiting for contractors and sub-trades. Framing the house yourself will speed things up. It is a complex house, much like my own in that ...
  • | May 25,2018 10:48 AM EDT
    Hello all, Thank you Martin, for this and many other fantastic articles. Another thanks to all the commenters, this site is such a great forum. I'm working on a new build outside of my ...
  • Martin Holladay | May 25,2018 10:39 AM EDT
    Jason, I don't know the definition of an "architectural" standing-seam roof. I'm assume you are talking about what is usually called a standing-seam metal roof -- probably painted steel. Does ...
  • davor radman | May 25,2018 10:10 AM EDT
    There is very little critical thinking and out of the box thinking and stuff like that in college. It's by vast majority just proving and signaling to the potential employer that you are a hard ...
  • Michael Blake | May 25,2018 09:40 AM EDT
    Thanks for all the useful replies. Martin- the bumpouts face due south. This plan was drawn up for a different location on the property, and was originally going to face north. Our new floor ...
  • John Semmelhack | May 25,2018 08:21 AM EDT
    Why does the duct system have to be high static pressure? Have you looked into using multiple 1-1 ducted splits? We've done several large (up to 6,000sf), low-load houses using Fujitsu ...
  • Dana Dorsett | May 25,2018 07:59 AM EDT
    What Martin said! Regarding the furnace fan: In addition to being a waste of energy, running the air handler without the burners going delivers a wind-chill draft, which is the opposite of comfort!
  • Dana Dorsett | May 25,2018 07:57 AM EDT
    Even a 4" cantilever (maintaining the thickness of the sub-slab EPS at the vertical section) is not a problem here.
  • Martin Holladay | May 25,2018 07:47 AM EDT
    Rick, Check out Peter Yost's first article on Kooltherm, "Kingspan Kooltherm Phenolic Foam Rigid Insulation." In that article, he reports that the blowing agent used to ...
  • Rick Evans | May 25,2018 07:06 AM EDT
    Peter, Have you guys looked into/rated the global warming impact of Kooltherm? How does is compare to other types of rigid foam? Thank you,
  • Jonathan Lawrence CZ 4A New Jersey | May 25,2018 06:39 AM EDT
    Walter, That is something that I have contemplated before. In a heating climate, would it not be better to size a system for 75% of design load, whatever level maximizes modulation, and then ...
  • Martin Holladay | May 25,2018 06:13 AM EDT
    J., Q. "If I don't heat the basement (just seal it and insulate the rim/walls) should I install new batt insulation between the floor joists?" A. No. You want to insulate the basement walls, ...
  • Martin Holladay | May 25,2018 06:06 AM EDT
    Joe, I suppose you could hire a certified Passive House consultant, or a HERS rater, depending on your philosophy and needs. Or you could post your questions on GBA, and get free help.
  • Martin Holladay | May 25,2018 06:02 AM EDT
    Thanks for the photo and details.
  • Malcolm Taylor | May 24,2018 09:44 PM EDT
    Jonathan, i agree with Jon that a 2" cantilever isn't worth worrying about. If you do run the foam up, it's worth remembering that once a stair (or roof rafter or any similar diagonal element) is ...
  • Walter Ahlgrim | May 24,2018 09:03 PM EDT
    Let me put this out there probably insult the passive house forks. If you add resistances heat, that will only run when it is below 10°. This would let you install a smaller heat pump that ...
  • Jon R | May 24,2018 08:56 PM EDT
    I don't see the problem with a 2" cantilever in concrete - with foam (or air) under it.
  • Phil Jamison | May 24,2018 07:57 PM EDT
    Our house is in a small village in the Morvan in central France. I had the roof replaced about 15 years ago. The original was slate with under-size split tree limb rafters which were sagging under ...
  • Jonathan Lawrence CZ 4A New Jersey | May 24,2018 07:33 PM EDT
    Irene, If I could do a 1 to 1 setup, any of the manufacturers systems would work well. The problem is this project has low loads, large footprint and high static pressure so it really needs a ...
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