Shawna Henderson
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High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?
3 Replies

Just had a convo with a cold climate builder who said he has had concerns about the viability of the continuity of the air/vapour barrier created by using high-density foam in frame walls where…Continue

Started this discussion. Last reply by Richard Beyer Jul 31.

 

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Richard Beyer replied to Shawna Henderson's discussion High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?
"Shawna foam pulling away from the studs due to over application will cause spontaneous combustion or core burn. A poor mix will cause splitting of the foam and noxcious odors.…"
Jul 31
Sean Lintow Sr replied to Shawna Henderson's discussion High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?
"Well if budget dictates one uses wet / green wood, said budget had better dictate drying time as no product should be installed until everything is dried out The issue isn't the product, it is improper application"
Apr 11
Shawna Henderson replied to Rob Buchanan's discussion 'Shielding insulation'
"Well, it's part of Selkirk's chimney or venting package, and "may be installed within an Attic Insulation Shield, a Wall Thimble or a Cathedral Ceiling Support" as  a way to reduce air leakage at that nastiest of places:…"
Apr 9
Shawna Henderson replied to Shawna Henderson's discussion High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?
"...apart from installation issues, I mean. Have asked a few questions of one Net Zero builder who is using high-density foam and he pointed to installation QA/QC problems with +2" layers being sprayed, or layers are being sprayed without enough…"
Apr 9
Shawna Henderson's discussion was featured

High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?

Just had a convo with a cold climate builder who said he has had concerns about the viability of the continuity of the air/vapour barrier created by using high-density foam in frame walls where budget dictates non-kiln-dried framing materials. Once the foam has set, and the wood starts to dry out, he has seen the studs twist and cup and significant cracks develop at the junction between the studs and the foam, and in some cases throughout the foam itself.Although he didn't tell me if he'd done…See More
Apr 9
Shawna Henderson posted a status
"Posted on Forum: anyone had probs with cracks in 2lb foam in stud cavities/impact air/vapour barrier? Got blower door figs/ACH delta?"
Apr 9
Shawna Henderson posted a discussion

High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?

Just had a convo with a cold climate builder who said he has had concerns about the viability of the continuity of the air/vapour barrier created by using high-density foam in frame walls where budget dictates non-kiln-dried framing materials. Once the foam has set, and the wood starts to dry out, he has seen the studs twist and cup and significant cracks develop at the junction between the studs and the foam, and in some cases throughout the foam itself.Although he didn't tell me if he'd done…See More
Apr 9
Shawna Henderson posted a video

Window Retrofits - Sash Replacement

"animation of sash replacement process from Blue House Energy Envelope Specialist Course"
Apr 1
Mike Muras commented on Shawna Henderson's blog post Who reads the manual? Hiss and Poop are abnormal Phenomenon
"If they made manuals funny, we would read them."
Apr 1
Mike Muras commented on Shawna Henderson's blog post Who reads the manual? Hiss and Poop are abnormal Phenomenon
"Reading the manual helps me to learn the proper way to proceed. Most of the time it's not easy to keep reading. "The Manual". But this one is funny! Thank you!"
Apr 1
Shawna Henderson posted a blog post

Who reads the manual? Hiss and Poop are abnormal Phenomenon

I had no idea heat pumps were such poop and kak generators.See More
Apr 1
Shawna Henderson posted a status
"Last few days to register for Building Science Basics at $295 (US or CDN). You have 6 weeks to take the course. http://j.mp/1l9ZDwM"
Mar 28
Shawna Henderson joined David Eggleton's group
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1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding the range of strategies & tactics from which we might propose when engaging with people, the ones who choose.See More
Mar 28
Shawna Henderson replied to Mike Rogers's discussion Where do you fall in the "staged" versus "gotta be all at once" discussion?
"Amen to that, Ted. Our list of contractors gets pruned regularly because of this, and people who do good work in their area of expertise get no more jobs out of us, simply because I don't have the bandwidth to find out if they are…"
Mar 27
Shawna Henderson replied to Mike Rogers's discussion Where do you fall in the "staged" versus "gotta be all at once" discussion?
"I am all for comprehensive phasing. All at once is brilliant, but what percentage of the projects that present themselves are comprehensive deep energy retrofits? Not many, I'm guessing. We work with clients to create a roadmap with 3 to 5…"
Mar 27
Shawna Henderson posted a status
"Building Science Basics special offer -- $100 off until 31 Mar. Complete course & exam for 10.5 BPI CEUs."
Mar 27

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Who reads the manual? Hiss and Poop are abnormal Phenomenon

I had no idea heat pumps were such poop and kak generators.

Posted on April 1, 2014 at 9:56am — 2 Comments

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At 8:21pm on February 17, 2014, Diane Chojnowski said…

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