Comments on: Professor John Straube on Moisture Physics https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/ Building science knowledge, HVAC design, & fun Thu, 28 Jul 2022 21:04:33 +0000 hourly 1 https://wordpress.org/?v=6.6.2 By: George Hawirko https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11788 Tue, 02 Oct 2018 22:06:29 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11788 As Dr. Joe Lstiburek says,
As Dr. Joe Lstiburek says, wood is good…but strange and so is Joe.
Dr. Straube, on the other hand, is a real BS explainer that builders can use and rely on.

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By: Bill Swanson https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11639 Wed, 29 Aug 2018 12:33:59 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11639 In reply to DC Builder .

Just a hand sketch at this
Just a hand sketch at this point.

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By: Kurt Mitenbuler https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11638 Mon, 27 Aug 2018 14:11:58 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11638 Zip, so far, has no
Zip, so far, has no particular negatives outside implicit trust in tape. What about Vaproshield and similar (vapor open wrap) Delta products?

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By: DC Builder https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11637 Mon, 27 Aug 2018 00:50:42 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11637 Bill, Do you have a detail
Bill, Do you have a detail/drawing of your ideal wall? Thx.

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By: Bill Swanson https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11632 Wed, 22 Aug 2018 20:30:01 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11632 In reply to Old Redtop.

For a speed point of view,
For a speed point of view, the ZIP sheathing would work. But it is essentially OSB. For being able to survive water damage I picked plywood for the sheathing. If Huberwood or someone else would make a plywood with factory applied, fluid applied vapor barrier, I’d be in heaven.

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By: Old Redtop https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11630 Wed, 22 Aug 2018 18:35:48 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11630 In reply to Bill Swanson.

Bill,
Bill,

I curious about one component you selected in your ideal wall… the 1/2 inch plywood. Why would you choose that over something like Zip sheathing? Is it a certain “grade” of plywwod?

Thanks.

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By: Bill Swanson https://www.energyvanguard.com/blog/professor-john-straube-moisture-physics/#comment-11629 Wed, 22 Aug 2018 13:15:09 +0000 http://energyvanguard.flywheelsites.com/?blog_post=professor-john-straube-on-moisture-physics#comment-11629 I have spent a lot of time
I have spent a lot of time trying to select the best envelope design. With moisture being a big factor in the selection process. I’m curious, at this point in your life, knowing all that you know about building science. What is your ideal envelope?

I have a wall design that I like.
– rain screen
– 1″x3″ furring strips spaced 24″ on center with air gap between for drying.
– 4″ of rigid mineral wool insulation. 2 layers with staggered seams.
– fluid applied vapor barrier on
– 1/2″ of plywood.
– 2″x6″ wood studs spaced 24″ on center
– 3.5″ mineral wool batt insulation between studs. The inside 2″ of the stud is clear for electrical and plumbing.
– 1/2″ of drywall.
– paint

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