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

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

Views: 4818

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

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Laura Langham posted an event
Thumbnail

Residential Home Energy Efficiency Workshop - Greensboro, NC at Kathleen Clay Edwards Library – 1420 Price Park Drive, Greensboro, N.C. 27410

March 3, 2015 from 6:30pm to 8pm
Free Home Energy Conservation Workshop: Greensboro – 3/5/15Register for the Greensboro workshop…See More
34 minutes ago
EnergyLogic Academy posted an event
Thumbnail

RESNET Rater Training Phase II at Denver, CO

May 11, 2015 to May 14, 2015
Join us in Beautiful Denver, CO!The field portion of HERS Rater Training is 4 days of field…See More
38 minutes ago
Jim Gunshinan replied to Jim Gunshinan's discussion When your shower is in your kitchen...
"With more and more builders in crowded, expensive-to-rent-in cities like New York creating…"
46 minutes ago
Home Energy Magazine's blog post was featured
1 hour ago
Profile IconBilly Ray Griffin and Lee Blanchard joined Home Energy Pros
1 hour ago
Home Energy Magazine posted a discussion
1 hour ago
Sean Lintow Sr replied to Jim Gunshinan's discussion When your shower is in your kitchen...
"Cool, I can start cooking dinner, hop in and take a shower while making sure that…"
2 hours ago
Jim Gunshinan posted a discussion

When your shower is in your kitchen...

Interesting question by Leanne Maxwell, former colleague at Home Energy:"Aside from all of the…See More
3 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service