Construction Design-Flashing Details and the International Flashing Awareness Day 2022

Late summer, 2021, Aron Jones (bigdogconstruction.gm on Instagram) and Gina Hoyt (bigdoglifex3 on Instagram) started the International Flashing Awareness Day to bring awareness to the importance of correct flashing details.  I participated by posting a failed assembly that was lacking correct flashing on my Instagram account.

This year the International Flashing Awareness Day is on Friday, August 26, 2022.  Instead of producing a quick post for Instagram, I decided instead to write a blog covering the subject of flashing in construction.

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Shorts-Attached Structures Outside the Air Control Layer and Blower Door Testing

Whether you are performing blower door testing or hiring someone to perform the test for you, it’s a good idea to understand how a home should be setup for the test.  Should a door be open or closed?  What can be sealed off?  How to address rooms attached to the house but are outside the air control layer?  That’s today’s topic, attached garages and three season porches.  How should those spaces be setup for a blower door test?

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Shorts-If They’re Not Asking, And You’re Not Telling, Somebody’s Assuming

I was recently teaching a continuing education class on energy code, the class was attended by about 100 general contractors.  We covered a lot of information about energy and building science, one of the topics I discussed, and was hoping every contractor there would remember, was the topic; who is responsible?

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Building Science-Ice Dams

This year seems to be a good (or bad depending on how you look at it) year for ice dam problems in my area, the intensity of ice dams seems to change year to year.  I was recently on an ice dam diagnostic with an insulating contractor and a general contractor, the home was built in the early 1990’s and there is evidence there have been issues from the beginning.  We spent a couple hours testing this home, I’ll get into what we found in a bit.

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Building Science-Existing Construction Improvements

This three-part series first appeared on the Green Building Advisor website and has been condensed into one post.

An unconditioned and uninsulated crawlspace, an unsealed and uninsulated forced air heating system, and an uncovered dirt floor, which by the way has a sewage leak.  If this were your home and you wanted to make improvements, where would you start? Continue reading “Building Science-Existing Construction Improvements”

Building Science-An Interview with Gary Nelson

I think most of us know of this man, one of the founders of The Energy Conservatory and designers of the Minneapolis Blower Door.  I recently had the opportunity to chat with Gary.  My intent with the interview is a little different from other interviews that have featured Mr. Nelson.   I wanted to ask questions from a practitioner working in the field point of view. Continue reading “Building Science-An Interview with Gary Nelson”