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

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Profile IconHannah Miller, mohammad wathaifi, Comly Wilson and 1 more joined Home Energy Pros
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Linda Wigington added a discussion to the group 1000 Home Challenge
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25th Project to Officially Meet the 1000 Home Challenge! The Energy+ Household - Bay Area, CA

The Energy+ Household – Bay Area, CaliforniaOver the past several years the Ghosh family has…See More
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Ben Jacobs replied to Mike Kandel's discussion Have you heard!? BPI's BSP Certificate Approved as Home Energy Score Prerequisite!
"I am very pleased to see the collaboration between the Building Performance Institute (BPI) and the…"
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Stan Kuhn replied to Mike Kandel's discussion Have you heard!? BPI's BSP Certificate Approved as Home Energy Score Prerequisite in the group Building Performance Institute (BPI)
"Mike, are there any statistics on the number of HES ratings performed, by all providers?"
yesterday
Mike Kandel added a discussion to the group Building Performance Institute (BPI)
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Have you heard!? BPI's BSP Certificate Approved as Home Energy Score Prerequisite

The Building Performance Institute's Building Science Principles (BSP) Certificate of Knowledge has…See More
yesterday
Mike Kandel posted a discussion

Have you heard!? BPI's BSP Certificate Approved as Home Energy Score Prerequisite!

The Building Performance Institute's Building Science Principles (BSP) Certificate of Knowledge has…See More
yesterday
Shawna Henderson posted a status
"New Blog Post @HomeEnergyMag Why I like Dumb, Do-Nothing Houses http://shar.es/1WSOIX"
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