Derin Williams
  • Portland, OR
  • United States
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Derin Williams's Page

Latest Activity

Derin Williams replied to Evan Riter's discussion Making crawlspaces conditioned space
"Jerry,   Why duct seal when the ducts are brought into conditioned space? Maybe to improve air flow to the registers?   Thanks"
Jan 26, 2012
Derin Williams is now a member of Home Energy Pros
Jan 5, 2012

Profile Information

Company
Efficiency Service Group
Professional Certification
BPI Building Analyst/Envelope, PTCS, PATS, SBA
Professional Interests
Tiny Houses

Comment Wall (1 comment)

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At 9:34pm on January 9, 2012, Diane Chojnowski said…

Hi Derin,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. And add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

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 replied to Hal Skinner's discussion An example of what an RCC can do with no R- insulation in the walls.
"Mornin Brett. 90 to 85, yes a slight variance there.  Same ASTM test, different scientists,…"
2 hours ago
Bret Curry replied to Hal Skinner's discussion An example of what an RCC can do with no R- insulation in the walls.
"Great information Hal. It appears the thermal emissivity in your test was .85 rather than .90. Are…"
3 hours ago
Juan Roca commented on Dale Stephens's blog post LED Lighting - Garage Door opener interference
"Hi,There is a real problem with remote controls and LED lights. However, there is a solution in the…"
10 hours ago
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Hal Skinner replied to Hal Skinner's discussion An example of what an RCC can do with no R- insulation in the walls.
"Bret,  here are the 2 reports I referred…"
23 hours ago
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23 hours ago

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