Recent Comments and Answered Questions on Lakesideca Advisor

  • Dana Dorsett | Jul 17,2018 06:11 PM EDT
    I'm not sure why XPS + polyiso rather than just polyiso? XPS performance drops to R4.2/inch over time as it's high global warming potential HFC blowing agents (more than 1000x CO2) dissipate ...
  • | Jul 17,2018 05:39 PM EDT
    I did some more investigation. Pulled out a recessed can, pushed aside the fiberglass. See the photos. It looks like there is about 12 inches of space between the drywall and the OSB roof ...
  • Dana Dorsett | Jul 17,2018 05:20 PM EDT
    Alan- you would need to know the material of the dye to even take a WAG at how much of the IR & UV it was absorbing vs. reflecting. The aluminum blocks all of it, but whether the finish is ...
  • Lyell Slade | Jul 17,2018 05:09 PM EDT
    Thank you for all the work you do on here helping people with their questions. And I 'm sorry I keep asking all these questions. So if have an FH09 that modulates down to 1600 Btu for heat and ...
  • Alan B | Jul 17,2018 04:15 PM EDT
    @Lynda I know what you mean about cause damage, i used a whole windshield foil faced sun reflector in the car and one day it melted one side of the cell phone mount on the windshield. The sun must ...
  • Dana Dorsett | Jul 17,2018 04:10 PM EDT
    As long as there is the 1/2" gap between the siding and polyiso you should be fine. With 2" of foam on the exterior side you can fill any remaining space on the conditioned-space side of the ...
  • Jon R | Jul 17,2018 02:33 PM EDT
    Some of the analysis in this topic would be more appropriate to the case of a steel bolt all the way through a steel SIP.
  • Martin Holladay | Jul 17,2018 02:32 PM EDT
    Nick, Q. "I was not sure if the insulation would behave in the same way on the interior of the roof rather than the exterior." A. If you install R-15 closed-cell spray foam on the interior ...
  • Martin Holladay | Jul 17,2018 02:23 PM EDT
    Steel Ear, I would say, take a deep breath before you take this step. Once painted, brick veneer will have the same maintenance schedule as clapboard -- in other words, frequent scraping and ...
  • Dana Dorsett | Jul 17,2018 01:39 PM EDT
    Alan B: Yes, standard white blinds will block and partially reflect IR & UV, but absorbing some amount of spectrum (depending on the characteristics of the material.) Aluminum / aluminized mylar ...
  • Steve Knapp CZ 3A Georgia | Jul 17,2018 01:01 PM EDT
    You might want to check out Romabio masonry paint. It has has a high perm rating and is quite durable.
  • | Jul 17,2018 12:34 PM EDT
    Thank you Martin, I signed up for a premium membership but haven't been able to access the premium articles yet. I will read when I am able, I have read many of the other articles you have written ...
  • Dana Dorsett | Jul 17,2018 11:56 AM EDT
    Lyell: >" I understand that it is not as efficient to have a multi split. I believe I read elsewhere on here that they can be 20% less efficient. Is that correct?" I wouldn't hazard a ...
  • Martin Holladay | Jul 17,2018 10:50 AM EDT
    Nick, Q. "If I was to spray foam the inside of the cathedral section, will the thermal bridging possibly cause condensation issues?" A. No. Q. "How much foam is needed to prevent ...
  • Martin Holladay | Jul 17,2018 10:44 AM EDT
    Nick, Q. "From what I can see the roof sheathing is good condition with no dry rot, however where the unconditioned/cathedral sections meet the sheathing on the cathedral side [something] has ...
  • Lyell Slade | Jul 17,2018 09:59 AM EDT
    Hi Dana, with regard to your answer, number 5 above, I am trying to understand the difference between having dedicated outdoor units for the 2 indoor heads and a single outdoor unit. I ...
  • Lynda Robertson | Jul 17,2018 09:07 AM EDT
    Where I live, it won't go below 100* during the day this week, and the sun is brutal. I've been working with reflective products for many years, and I disagree with the general consensus on ...
  • | Jul 17,2018 08:42 AM EDT
    Martin, My main goal is to create a structurally sound roof system. I do not have the budget to make the entire home as energy efficient as possible but if I can cost effectively add some ...
  • Brian P | Jul 17,2018 08:13 AM EDT
    James, no problem. I think Martin has offered to connect people who don't want to share their personal email online. I think you can send him an email at [email protected], he should ...
  • Martin Holladay | Jul 17,2018 05:12 AM EDT
    James, I assume that "Brian P" is Brian Post, the author of a series of GBA blogs. To learn more about Brian's project, read his blogs. The first one is "Building a Small ...
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