Recent Comments and Answered Questions on Lakesideca Advisor

  • andrew c | Jul 15,2018 09:55 PM EDT
    @ Malcolm, re getting inspectors interested in something else: a senior engineer that I knew used something he called "bitch-deflectors". Prior to a design review, he would intentionally include ...
  • Steve Knapp CZ 3A Georgia | Jul 15,2018 09:26 PM EDT
    Craig, How old is the attic unit? What is its efficiency?
  • Jonathan Blaney | Jul 15,2018 08:22 PM EDT
    Pumped in concrete or flowable fill perhaps. Exterior drains? Were are the mechanicals/ water supply? Unless you need to condition all or some of the crawspace, I would go with drains and max ...
  • Malcolm Taylor | Jul 15,2018 06:18 PM EDT
    John, I think Walter has given you good advice.
  • Malcolm Taylor | Jul 15,2018 06:16 PM EDT
    Jeff, I agree. Stitch screws, especially with that gauge metal, are prone to backing out and don't have enough meat to hold onto keep the washer tight. I haven't any good argument to give ...
  • Walter Ahlgrim | Jul 15,2018 06:02 PM EDT
    If this project is going to travel very much I think partial board even Zip’s high quality partial board is a poor choice. Because, 1 partial board is very heavy this weight will put needles loads ...
  • | Jul 15,2018 05:10 PM EDT
    Doesn't look like anyone has posted on this in over 2 years, however I'll give it a shot. I live in Chicago (cold winters), I have 2 HVAC systems in the house, basement (sealed) and attic ...
  • Kevin Camfield | Jul 15,2018 03:31 PM EDT
    Thanks to a lot of help from Dana and others on this forum, we decided to go with a Mitsubishi zoned system using a MVZA18AA7 multi position unit downstairs and SEZKD12NA4R1 horizontal ducted unit ...
  • John Haller | Jul 15,2018 02:33 PM EDT
    As a follow-up, would you see any issues or that it would be better for me if I were to use regular zip panels with spray foam on their backside, but then put my foam strips between the studs in ...
  • Jon R | Jul 15,2018 01:42 PM EDT
    Even with a design where they are optional, I'd do the following for increased moisture safety: a) a vent channel under the metal roofing (above the foam) b) some ability to dry in both ...
  • Walter Ahlgrim | Jul 15,2018 11:02 AM EDT
    From the photos it looks like you have established your air, thermal and water barrier on the outside wall and roof. They are what they are. Given their location I see few reasonable options for ...
  • John Haller | Jul 15,2018 10:13 AM EDT
    Thank you for your input. I am going to take a look at the Zip R sheathing. And just to clarify I meant 1.5” thick and 3” wide. Also, am I correct to assume since it was not mentioned that ...
  • andrew c | Jul 15,2018 08:08 AM EDT
    Thanks for feedback Jon and Martin. I will try to figure out exactly how high the water has gotten in the past and then see how large a task I am facing to raise the crawlspace floor. Will also ...
  • Rick Evans | Jul 15,2018 08:02 AM EDT
    John, I just wanted to add that I have seen it done before but not with 3" thick rigid foam (probably for the reasons Martin stated.) There is a net-zero modular home builder in Vermont ...
  • Martin Holladay | Jul 15,2018 06:59 AM EDT
    Kathleen, Jon is correct that you can use ventilation fans to either pressurize or depressurize your house or your attic. Doing this will change the pressure dynamics, and may be used to change ...
  • Martin Holladay | Jul 15,2018 06:54 AM EDT
    Andrew, I'm going to second Jon's suggestion of raising the crawlspace floor -- I would use crushed stone, but I suppose sand would work -- and then installing a heavy polyethylene vapor barrier. ...
  • Martin Holladay | Jul 15,2018 06:51 AM EDT
    John, Q. "It seems like it could be a solid way to build." A. Hmm. It could be, perhaps, but there are issues that need to be considered. If you were building a house, I'd say, "Talk ...
  • Jon R | Jul 14,2018 09:33 PM EDT
    Yes, I think that many buildings have air leaks, dew points and pressure differentials that cause some localized partition moisture increase. I expect that most of them dry before there is a ...
  • Kathleen J | Jul 14,2018 07:38 PM EDT
    Jon, do you mean my situation could be typical? I have to be honest, I don't know much about building science, but I love to learn. Hence all the tools.
  • Jon R | Jul 14,2018 07:15 PM EDT
    Unfortunately, the references I've seen cover only excessive negative attic pressure, far beyond what is needed to stop ceiling infiltration. This creates unneeded AC load. Some info ...
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