Foundation Thermal Sketch

This is here to point out the total lack of recognition of heat-transfer, we just patch up the problem with some insulation here, some vapor barrier there.

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Comment by Tom Mallard on March 28, 2011 at 8:02am

The foundation is hard to control for heat-transfer due the compression loads, can't say I've solved anything other than to ponder insulation that can handle the loads to replace the board joists are usually nailed that's anchored to the concrete. That would be a worthy new product for energy conservation in home construction.

Another I've thought of tho' is where joists are open to the interior floor, that first foot needs to breathe but my opinion needs to be stuffed with insulation with the paper torn off to allow breathing of condensation but killing direct air movement.

That area is like a chiller in winter, the cold air from the wood gets warmed enough right there to rise and creep along the floor above the typical insulation just from sag between it and the wood!!

Comment by Tom Mallard on March 28, 2011 at 6:03am
Too true ... I'm such a misfit ...
Comment by Jim Peck on March 28, 2011 at 3:50am
As specie whom claims such intelligence, we do seem remarkably shortsighted

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

Graham Irwin replied to George Kopf's discussion How does efficiency factor into a grid parity world?
"John, Interesting though, if you read this NREL article…"
41 minutes ago
John C. Semmelhack replied to George Kopf's discussion How does efficiency factor into a grid parity world?
"Graham, The U.S. is catching up to Germany very quickly on solar installs. As of the end of 2013,…"
58 minutes ago
Ben Jacobs replied to Isaiah Borel's discussion Blown Cellulose VS Blown Fiberglass in the Attic
"Hi Isaiah, I have experience with both fiberglass and cellulose. I think that cellulose is…"
2 hours ago
Dolores Bevilacqua posted events
3 hours ago
Bob Blanchette replied to Dave Robinson's discussion Can We PLEASE Stop Calling Them “Ductless” in the group 1000 Home Challenge
"Concealed units in hallway ceilings aren't new. Apartments have been using them for decades."
3 hours ago
Graham Irwin replied to George Kopf's discussion How does efficiency factor into a grid parity world?
"George, You raise a good question. The concept of "free and unlimited" energy is not…"
3 hours ago
David Byrnes posted an event
Thumbnail

Best Lead Source For Energy Auditors at Your computer

November 1, 2014 at 12am to January 3, 2015 at 7pm
In 2009 I started my energy auditing company, Green ID, with over $3,000 in credit card debt to…See More
3 hours ago
Empower Efficiency added a discussion to the group Job Board
Thumbnail

Empower Efficiency is hiring!!!

Empower Efficiency is a woman-owned firm dedicated to making energy efficiency and renewable…See More
4 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service