Come check out BPI's monthly newsletter, Performance Matters!

The image below was taken by Matt Schwoegler, a thermographer and infrared instructor with the Snell Group. Matt was on location in Vermont, helping to train a weatherization crew from the Champlain Valley Office of Economic Opportunity (CVOEO) which was already working on the home. The room in question was used by the homeowner as a three-season porch/bedroom. Matt explains that this portion of the home appeared to be an addition to the original structure, and was likely moved to the home's location where it was connected to the main house.

During the infrared training and building inspection, which was taking place in warm weather conditions, Matt found what appeared to be an insulation level on the wall in this room. While the ceiling appeared to be uninsulated, what was happening with the wall was not as clear.

So, what's wrong with this picture?

Tags: BPI, Chump, Newsletter, Stump, the

Views: 123

Replies to This Discussion

Key is this was done in warm weather. The back wall of the room was also uninsulated, but the lower portion was against the air-conditioned envelope of the home. The red area above was against the attic area, causing the increase in temperature.

Warm weather conditions is pretty relative and for Vermont 75 degrees F can easily be seen as warm weather, not to mention the fact that many VT homes don't use air conditioning. If the porch was an addon with an uninsulated roof then we can probably assume there are some air leaks causing cooler interior air to be drawn to the space from the opening to the house. If the main house has insulated exterior walls, which in VT I assume it does, than AC cooling is probably not the culprit or the cooler walls. If there is humidity from lack of a conditioning unit then the cedar walls are probably absorbing moisture and as the air moves along them, evaporation will cause the walls to cool. The hotter roof can easily be from solar radiation or a mini stack effect from the uninsulated and non vapor sealed roof. I do see a couple hotter spots on the side walls though, which leads me to believe that the temperature difference is purely solar radiation, and most parts of the exterior porch walls are shaded.

RSS

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Kit Yturralde posted a blog post

Crawl Space Dehumidifiers Vs. Portable Dehumidifiers

If you start looking at the prices of crawl space dehumidifiers compared to portable dehumidifiers,…See More
2 hours ago
Profile IconBarbara Smith and Carl Johnson joined Tom White's group
Thumbnail

Weatherization

Share your concerns and successes as a weatherization professional, or information for this…See More
19 hours ago
Carl Johnson replied to Joel Greenberg's discussion The Truth About Windows? in the group Weatherization
"I think the appeal of replacing windows is largely on the aesthetics for most homeowners. Nobody…"
19 hours ago
Carl Johnson commented on Amber Vignieri's blog post Chicago Winter No Match for Retrofitted Logan Square Building
"Beautiful home! Did Josh replace the windows as well or no? Living in Chicago myself, I know about…"
19 hours ago
Carl Johnson commented on Diane Jackson's blog post Two Addison Projects Win Housing Innovation Awards
"These homes look great! Congrats!"
19 hours ago
Carl Johnson is now a member of Home Energy Pros
20 hours ago
Paul Scheckel posted a blog post

Renewable Rant: Traditional Energy!

Why, when I open up a newsletter or market evaluation report about “traditional energy” markets, do…See More
yesterday
Rob Madden, Solar Home Broker's discussion was featured

Indoor Air Quality Monitors and Meters

I'm considering purchasing the AirAdvice for Homes indoor air quality monitor but it seems to have…See More
yesterday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service