Does anyone else just see a lawsuit when they watch this video?

http://www.trustedhomeservices.com/eshield/video.asp

Views: 7031

Reply to This

Replies to This Discussion

Unbelievable. With all their money you'd think they would buy a clue.

That is pretty incredible.If they have the kind of air leakage into the attic implied by their ice dam problems I expect condensation and associated issues.

It sounds like Costco isn't getting top grades for this service, even from friends: http://addictedtocostco.com/2008/10/07/have-you-used-costco-service...

Does anybody know how much this job may have cost-installed?

I want to know how they got inside Joe Lstiburek's attic.

LOL, the only thing joe would let these guys touching his house is the door knob to get out the front door!

They make a curious claim about "Almost all of the energy lost in your home is through emission (radiant heat transfer).".. as opposed to convection and conduction.  Seems a bit over the top. 

 

http://www.trustedhomeservices.com/eshield/energy-barrier.asp

 

 Maybe if you lived in a well sealed glass house....

 

Kevin

Even better is that he is claiming a 25% reduction in the home's energy bill - not heating bill, but the energy bill. The sad thing is people still buy these kind of claims.

Has any credible building science study been conducted on the efficacy of radiant barriers in heating climates. I'm sure they work great in Florida to reduce cooling loads but to claim they work during the heating season in New England, it's impossible. 

According to the U.S. Department of Energy’s Energy Efficiency and Renewable Energy Clearinghouse, “Two field tests, one in Minnesota and one in Canada, both found that a radiant barrier placed over R-19 attic floor insulation (which is less than half the DOE minimum recommendation for those climates), found that the radiant barrier contributed to less than a 1% reduction in energy consumption for heating and cooling.” (sorry, couldn't find the actual study link)

And that was with R19. Any savings at all disappears when you consider most attics in a cold climate will have a higher R-value than R-19 and if they don't it will be much more cost effective to install an additional R30 blown fiberglass or cellulose.

Even if you were chasing these meager savings, a radiant barrier on the cold side of the insulation acts as a vapor barrier in the wrong location. Even if your using the perforated stuff you can have condensation freeze in the perforations and then wreak havoc on your insulation and possibly cause a huge mold problem.

The Lawrence Berkeley study is actually on cool roofs which is applying a reflective coating to the top side of roofs to reflect solar load. Lining an attic with tin foil is completely different and making the claim that is works in heating mode I think is outlandish and I won't buy it w/o some sound building science to back it up.

Here is the DOE Radiant Barrier Article link:

http://www.energysavers.gov/your_home/insulation_airsealing/index.c...

This is for the Costco people...

If you want it done right, Call me.

Wayne

Radiant insulation systems.

www.radiantinsulsystems.com

Attachments:

RSS

Groups

Latest Activity

Kelly Vaughn posted a blog post
15 hours ago
Home Performance Coalition commented on Lindsay Bachman's event 2017 HPC Southeast Conference & Trade Show
"There's still time to register for the 2017 HPC Southeast Regional Conference this Thursday…"
15 hours ago
Home Performance Coalition posted photos
18 hours ago
Profile IconJames Hutto, Home Performance Coalition, Ken Goodrich and 1 more joined Home Energy Pros
18 hours ago
Victor Rols Lindsay commented on Building Performance Institute's group Building Performance Institute (BPI)
"Does anyone know what/ how/ where in Ontario Canada to become BPI certified? The contact I have in…"
Sunday
Victor Rols Lindsay joined Building Performance Institute's group
Thumbnail

Building Performance Institute (BPI)

BPI is the nation's premier standards development, quality assurance and credentialing organization…See More
Sunday
Safe-R Insulation commented on Chris Laumer-Giddens's blog post Rock Wool Insulation for Floor of High Performance Tiny House
"Thanks for sharing this much information about roof wall…"
Saturday
Lindsay Bachman's 4 events were featured
Friday

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service