"This is a topic I have discussed many times, but unfortunately cost is all too often the deciding factor, and it should not be. Code and safety are top priorities. What I have drawn from those conversations is, not all fixtures have been tested and…"
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Bachi Brunato
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Bachi Brunato's Discussions
Boxing and Insulating Around Non-ICAT Cans
2 Replies
I have a client with 16) 4" halogen recessed light fixtures in the attic.I'd like to cover the cans with air tight, fire rated boxes.The plan is to blow cellulose insulation over the boxed…Continue
Tags: lights, recessed, sealing, air
Started this discussion. Last reply by Bud Poll on Sunday.
Savings for Conditioned Crawlspaces
19 Replies
I'm just getting started with this forum and figuring out where to post these things. I just posted this question as a blog, but perhaps the "Discussion" format is more appropriate.I am wondering if…Continue
Started this discussion. Last reply by Ed Minch Aug 30, 2011.
Bachi Brunato's Page
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Sean Lintow Sr replied to Bachi Brunato's discussion Boxing and Insulating Around Non-ICAT Cans"If you can't talk them into replacing with IC rated...
Look into Tenmat - those are designed (& tested) to keep adequate spacing & resist fire
The tops should not be covered with additional insulation
Yes it can as they have a heat…"
Bachi Brunato posted a discussionBoxing and Insulating Around Non-ICAT Cans
I have a client with 16) 4" halogen recessed light fixtures in the attic.I'd like to cover the cans with air tight, fire rated boxes.The plan is to blow cellulose insulation over the boxed fixtures.My concern is about lamp-generated heat being trapped in these air tight, insulated boxes.I'm wondering if the trapped heat might cause a lamp or fixture failure.Any thoughts or experiences on this topic out there?Bachi BrunatoSee More
Ed Minch replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Terry
Thanks for for the data on the house. It really helps to figure things out to know these things. Sounds like you met the passive house standards for insulation and infiltration.
Ed "
Terry D. Davenport replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hi again Ed,
I have been all excited to measure ground temperature in the last couple a' days. My Caleffi idronics came in the mail, and it is on heat pumps. So I found my old notes, and on Dec. 31, 2010, I measured my…"
Terry D. Davenport replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hey there, Ed.
I think the house is 1200 ft2 on the inside and since the wall wound up 22" thick, it is 1400 ft2 on the outside. Hamilton MT is around 7700 heat degreee days. The Ravalli Electric Co Op used to cost 5.3…"
Ed Minch replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Terry
Congratulations - that is an admirable hea tbill in Montana. A couple of questions: How big is the house? How many Degree Days in your area? What do you pay for Columbia River electricity? What was the blower door number. And…"
Terry D. Davenport replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hi Ed. Great point in allowing for expansion and contraction of concrete. I am always pouring against an ICF foam wall. This is easily forgotten about. You have reminded me of a detail that I thought of when desigining…"
Bud Poll replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"I'm stuck in the in between world for now, not bad enough for extreme measures and not good enough with a hearing aide to communicate reliably. Poor hearing can be dangerous as the mind can be happy with what it thinks it heard, even…"
Ed Minch replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Great info, Terry. I have had similar experiences. The edge of the slab needs an expansion joint so that the expanding slab in hot weather does not push the foundation apart or buckle. This material is usually compressible so has…"
Bud Poll replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"I do a lot of free consulting to offset my extremely bad hearing, can't use a phone so I go to their home and talk to them as I can still get by face to face. But I always take my IR camera, it impresses people and even all by itself, it…"
Ed Minch replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"I think your R-1 an inch is a good number although the people at:
http://www.coloradoenergy.org/procorner/stuff/r-values.htm
Says brick and concrete are .2 or so.
A good way to generalize the ground temperature is to look at ground water temp.…"
Bud Poll replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hey Montana! As a kid we used to stay at the cabins in Sula and visit a hot spring somewhere nearby. Been many years.
Yes, the plume does build and ultimately finds its way to the surface around the house, but the farther it has to…"
Terry D. Davenport replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hi Bud. I was actually talking about a crawl space under a wood sub floor, quite typical here in western Montana. I was interested in insulating the I-joist floor system to cut down heat losses to the ground. I agree that the air…"
Bud Poll replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Hi Ed,
You say "Only those duct systems that are not performing well will result in a cold floor." I think that describes 90% of the homes I visit. The bedrooms over a garage or the family room over an unheated crawl, always seem to…"
Ed Minch replied to Bachi Brunato's discussion Savings for Conditioned Crawlspaces"Bud
I'm on board with everything you said except for one thing:
"All floors tend to collect the coldest air, due to gravity, so reducing infiltration and heat loss through the side walls and above is the best investment."
This…"
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Comment Wall (1 comment)
- At 6:12am on June 10, 2011,
Diane Chojnowski said… Hi Bachi,
Welcome to Home Energy Pros! 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. And add your location on our Member Map!
Thanks!
Diane, HEP Moderator
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