Robin Henry
  • Durango, CO
  • United States
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Floor I joists and properly installed insulation

Started this discussion. Last reply by Stanley Widener Dec 4. 27 Replies

Every single time I do an audit where the house has I joists instead of regular floor joists I see this issue. Either the insulation batts are installed with no tiger teeth at all and the batt is…Continue

Most current can light air sealing best practices?

Started this discussion. Last reply by Denise Curtis Sep 7. 6 Replies

I haven't had to airseal any can lights in several years. I have a client who has many can lights throughout his house and wants to have them airsealed and then insulated over. Several years ago I…Continue

 

Robin Henry's Page

Latest Activity

Stanley Widener replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I think the kraft facing would meet the requirements of "concealed" and "in contact" with "other surface" if the batts are supported to maintain contact. Not if there's a 5" air gap above them! Another reason…"
Dec 4
Mick Lane replied to Robin Henry's discussion Floor I joists and properly installed insulation
"This insulation may be installed correctly. There are way too many variables in play to give you the "right answer".  Yes, un-faced bats in joist cavities is not pretty, but is probably the best one size fits all answer for…"
Dec 4
Jeff Classen replied to Robin Henry's discussion Floor I joists and properly installed insulation
"In order to make the air gap above the insulation work effectively, the framing must be airtight at the joist end as well as have a continuous air barrier, and preferably some continuous insulation below the joists. You are essentially creating a…"
Dec 3
David Butler replied to Robin Henry's discussion Floor I joists and properly installed insulation
"@Stanley, your strategy for holding batts against the subfloor is interesting. Much better than wire 'insulation compressors'. That 1/2 EPS you're using is relatively inexpensive and since you're not going for full encapsulation,…"
Dec 3
Stanley Widener replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I agree with you - if the batts are just stuffed into a joist cavity without attaching the edges of the vapor barrier backing to anything, the vapor will just sneak around the inevitable gaps and it's really doing nothing for you. They might as…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"You're speaking along the lines of new construction and I'm talking about retrofits. When retrofitting these areas the least invasive method would be a drill and fill."
Dec 3
David Butler replied to Robin Henry's discussion Floor I joists and properly installed insulation
"Robin wrote: "the insulation is resting on the bottom of the drywall or plywood effectively doing nothing." Not true, as long as the exposed cavity sidewalls are insulated and the cavity is tight. As Joe points out, this configuration is…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I'm likely biased but I feel like the paper backing on batts is a bit of a joke and won't do much in regards to retarding any vapor transfer. I usually go for unfaced with whatever I do but I don't have to deal with moisture like many…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"Thank you I will look that over later"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"Yes we're on the same page here too. Ideally insulating the perimeter is best thing to do so long as there aren't significant moisture issues but where I am (Colorado) radon is very prevalent so at point you're also trying to sell…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I'm not speaking of the width of the batts but rather their placement with the air gap above the batt, between the batt and subfloor. Critters absolutely love these nooks as you mentioned and inevitably their presence coupled with gravity…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I only glanced at the mentioned article as I'm pressed for time but will have to circle back and read the whole thing later. This is still a bad justification for leaving the issues I'm seeing as is. With the way the floor insulation is…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"Do you have a link or source you could provide? I've not heard of this product before, thanks."
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"No but my argument here is that if the insulation isn't correctly installed in direct contact with the conditioned space then you might as well not even have it at all. The floor is essentially uninsulated in these instances and it's…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I agree with you here as well but my concern is looking at this from a retrofit perspective. Is there not a better way to address this issue other than filling the whole 10 or 12" cavity? I ask because inevitably I'm going to have a client…"
Dec 3
Robin Henry replied to Robin Henry's discussion Floor I joists and properly installed insulation
"I agree about enclosed cavities with cantilevered areas and finished garage ceilings. I always suggest dense packing all those cavities as well to ensure properly aligned thermal boundaries. At least 90% of the time the insulation is resting on the…"
Dec 3

Profile Information

Company
Pinnacle Building Performance
Role in Home Performance Marketplace
Contractor: insulation, Energy auditor / assessor / analyst, Energy efficiency / Weatherization program administrator or implementer / evaluator
Professional Certification
BPI
LinkedIn Profile
https://www.linkedin.com/in/robin-henry-3a460482/

Comment Wall (3 comments)

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At 8:12pm on February 18, 2019, Tommie John said…

I have a blower door if you are still interested in purchasing one.

At 8:17pm on November 20, 2018, James Pollard said…

Good Day,

How is everything with you, I picked interest on you after going through your short profile and deemed it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on ( mr.jamespollard01@gmail.com ) for the full details.
Have a nice day
Thanks God bless.

At 12:27pm on October 30, 2018, Diane Chojnowski said…

Hi Robin,

Welcome to Home Energy Pros Forum. Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos, and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo.

Thanks!

Diane, HEP Forum Moderator

 
 
 

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