Recent Comments and Answered Questions on Lakesideca Advisor

  • David Goodyear | Jan 15,2018 05:46 AM EST
    Although I agree with Martins answer to a certain extent, the full picture may be necessary in order to assess the situation. How do you plan on tying the primary air barrier continuously to the ...
  • Martin Holladay | Jan 15,2018 05:41 AM EST
    Robert, I agree with Dana's analysis. You wrote, "A problem might occur when a roof leak or wind-driven rain puts water into the attic and the cellulose gets heavier from water absorption." ...
  • Martin Holladay | Jan 15,2018 05:34 AM EST
    Tony, Q. "I too would like to air seal attic with rigid foam board on rafters before attaching pine ceiling. Can I use a full inch?" A. Yes. Q. "Won't foam board's low permeability be an ...
  • Martin Holladay | Jan 15,2018 05:17 AM EST
    Jerry, The fact is that a properly designed duct system -- with a good trunk and long-sweep ells (take-offs) coming off the trunk -- will do a better job of air delivery with less static pressure ...
  • Martin Holladay | Jan 15,2018 05:10 AM EST
    Alexander, You've gotten good advice. You'll never see enough savings due to reduced energy consumption to justify the investment in floor insulation. The only reasons to consider the ...
  • Martin Holladay | Jan 15,2018 05:06 AM EST
    Jerry, Q. "Is there any reason that drywall cannot be used both places?" A. No.
  • Jerry Liebler | Jan 15,2018 02:37 AM EST
    Kevin, If you put ducts in the ceiling & keep them in conditioned space you are creating a "service cavity" as your air barrier must be above the ducts. That's my plan being discussed in ...
  • Rick Milne | Jan 15,2018 02:05 AM EST
    That’s it !!
  • Jerry Liebler | Jan 14,2018 11:52 PM EST
    John, Thank you, perhaps you can help. How does the code define a duct? and what makes it a duct? the code certainly permits airflow in ducts,within "building cavities" exactly ...
  • Andy Chappell-Dick | Jan 14,2018 11:41 PM EST
    Alexander, your question can be answered by various methods of modeling the heat loss through any type of wall, and through the floor. It's discussed on this site at length, with various DIY ...
  • | Jan 14,2018 09:50 PM EST
    I too would like to air seal attic with rigid foam board on rafters before attaching pine ceiling. Can I use a full inch? Won't foam board's low permeability be an issue? I always thought winter ...
  • Jerry Liebler | Jan 14,2018 09:35 PM EST
    This is classic short cycling. that results from over sizing How is the temperature being sensed? What indoor temperature change accompanies each cycle? Do these particular units have the ...
  • Calum Wilde | Jan 14,2018 09:27 PM EST
    If the rooms are unoccupied try opening the doors between them and turning off one head. I'm still doing trial and error to see how low I can go, but it looks like my 12k btu Fujitsu is able to ...
  • David Martin | Jan 14,2018 09:03 PM EST
    I am using the standard wireless remote controllers. Why has Fujitsu programmed it with short cycles? Wouldn't it be more efficient with longer cycles?
  • Kevin Lucas | Jan 14,2018 09:02 PM EST
    I've tried discussing ducted options with the local HVAC contractors in this area and I haven't been able to get even a remotely comfortable answer from them, one even said that if I would design ...
  • John Semmelhack | Jan 14,2018 08:56 PM EST
    You’d be better off with a pair of small ducted mini-splits. Are you building on a conditioned crawl space?
  • John Semmelhack | Jan 14,2018 08:50 PM EST
    Jerry - your idea would be a code violation everywhere that I know of.
  • Alexander Lane | Jan 14,2018 08:40 PM EST
    Thank you Andy for that very intelligent answer. The headroom issue, the possibility of water intrusion and the construction costs all have me inclined to go with paint and area rugs. But my ...
  • John Semmelhack | Jan 14,2018 08:40 PM EST
    This is “classic” Short-cycling on a mini-split. It’s doing what FUJITSU has programmed it to do. Are you using the wireless controllers? Side note: the Sense is not likely to ever recognize ...
  • Alexander Lane | Jan 14,2018 08:19 PM EST
    Sorry, good questions: I’m in Western Massachusetts, and if I do insulate the slab I will install flooring of some kind, (maybe just plywood); if I don’t insulate the slab I would paint it.
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