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.

Views: 79

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

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Sean Lintow Sr replied to Larry Nissman's discussion Foam insulation on attic floor
"The insulation job is quite simply a freaking eyesore & mess - with that it shouldn't be…"
5 hours ago
Sean Lintow Sr replied to Melissa Baldridge's discussion IECC 2012 & 2015 Compliance & HRVs
"commercial is 67% efficiency & 2.8 cfm per watt for residential as I recall on 2015 which…"
5 hours ago
Simon added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

Advice needed please

I'm looking to build my own blower unit for use with the minneapolis system.Please could anyone…See More
8 hours ago
Simon joined Kim Tanner's group
Thumbnail

TEC

Discussion group for The Energy ConservatoryHave a question about residential or big building air…See More
8 hours ago
Rob Madden, Solar Home Broker replied to Rob Madden, Solar Home Broker's discussion Indoor Air Quality Monitors and Meters
"With a Foobot, are you able to recalibrate the sensors?  While I like the price and the…"
21 hours ago
Steve Mann replied to Steve Mann's discussion Eliminator EF400 Smoke Machine in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Yes it is. Steve"
yesterday
Laurie DiDonato updated an event
Thumbnail

Become a HERS Rater with the NE HERS Alliance this fall! at Classroom Component at Energize Connecticut Center

September 19, 2016 at 9am to October 21, 2016 at 5pm
Online Component: September 19th-30th - Weekdays 9am-12pm5-Day Classroom/Field Training:October…See More
yesterday
Melissa Baldridge posted a discussion

IECC 2012 & 2015 Compliance & HRVs

 I’m failing IECC 2012 with the HRVs we’ve been using – Honeywell .  (See specs below that I…See More
yesterday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service