Thanks to Rob Granger of YES Foam Insulation Specialists in Allegany, New York for this month’s stumper, published in the November issue of Performance Matters: The homeowners of a 60+ year old, two story home called an energy company to solve ice dam problems on their shingle roof. Because the home had a furnace and heating distribution system (ductwork) in the attic, it was a prime candidate for spray foam to the underside of the roof deck to bring the attic into the envelope. Indeed, the air conditioning costs of the house went down significantly after the roof deck was spray foamed with 5.5 inches of two pound foam. However, the first winter after the work was done, the home still suffered from ice dams. The ice dams were less but still cause for concern. Soon after the spray foam was completed the homeowners had the shingle roof covered with a new metal roof, and replaced the furnace and air conditioning with more efficient units.

 

Think you know the answer?

Figure out what is going wrong with the house, write it up along with your prescribed solution, and share your wisdom by posting your answer right here in our comments section. You can also send it to us at lmcdowell@bpi.org. If you’re the first person to get the right answer, we’ll feature you, your company and your answer in the next issue of Performance Matters!

Tags: Chump, Matters, Performance, Stump, audit, dam, efficiency, energy, ice, puzzler, More…the

Views: 94

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

Hal Skinner added a discussion to the group HVAC
Thumbnail

Old ductwork efficiency file

Allison,found the attached file on ductwork efficiency on an old CD I made.  Its definitely dated. …See More
2 hours ago
Hal Skinner posted a discussion

What an RCC can do with no R- insulation in the walls.

I have had a handful of folks on this forum tell me, in effect,  that an RCC can do a very good job…See More
3 hours ago
Trip Smith posted a discussion

Where to spend my marketing dollars?

Hey everyone, I'm a new home performance company owner. (Originally a general contractor who is…See More
4 hours ago
Profile IconManuel Gutierrez, Chris Baker, Sharon Cannizzo and 1 more joined Home Energy Pros
6 hours ago
Kevin Jordan replied to Kevin Jordan's discussion air infiltration total
"thanks.  but it was just an illustration of a hole 2x2 with money going out of that…"
8 hours ago
Tom White posted a video

Adaptive Thermostats Demonstration Results Installed at UC Davis 6/26/2014

In buildings where variations in occupancy would fool a standard programmable thermostat, new adaptive thermostats have potential for significant energy savi...
11 hours ago
Hal Skinner's discussion was featured

Has Lead Based Paint ever stopped you on an energy upgrade?

In the process of determining all the different things that a home energy rater suggests to a…See More
12 hours ago
George Kopf's 2 discussions were featured
12 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service