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

Bud Poll replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"Oh my!!! I think it was there.  What I wanted to point out was the need to check for lead and…"
30 minutes ago
David Meiland replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"Bud, you got cutt off mid-sentence.... can you hear me now??"
41 minutes ago
Bud Poll replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"To add to Richards list of what might have"
2 hours ago
Hal Skinner replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"Hi Richard. If we are talking a circa 1900 home, is there any insulation in the walls at all? …"
3 hours ago
David Meiland replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"Bud is right on. Get a professional auditor to assess the building. Finding the right person may…"
4 hours ago
Bud Poll replied to richard gaughan's discussion Advice for heating a 3-story Vermont home built in 1900?
"Hi Richard, Being a science writer and this being rental units, here is a moral dilemma you…"
8 hours ago
richard gaughan posted a discussion

Advice for heating a 3-story Vermont home built in 1900?

I'm a science writer, as opposed to an energy professional, and I joined this group to try to keep…See More
12 hours ago
Christopher Talarico posted a discussion

Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace

Hi,I've looked around online and haven't found a lot of good information on home heating with…See More
22 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service