George M. Matthews
  • Walnut Creek, CA
  • United States
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George M. Matthews's Discussions

What is the state of California's plan to have houses at ZNE by 2020?

Started this discussion. Last reply by Hal Skinner Mar 15, 2012. 2 Replies

Could someone in the know please clarify the State's (law or regs) position on a requirement for houses to be Zero Net Energy by 2020?I see that a Bay Area group has created a roadmap to a clean…Continue

Effectively pricing duct sealing

Started this discussion. Last reply by Sean Lintow Sr Jul 27, 2011. 9 Replies

I'm wondering what home performance contractors have found to be the best contract and or pricing method for air sealing duct systems?What happens when the system has leaky areas that are hard…Continue

To replace old leaky ducts with new flex ducts or to seal the old with mastic?

Started this discussion. Last reply by Philip Green Jan 18, 2012. 9 Replies

A number of home energy pros I'm in discussion with don't think there is much use in keeping old ducts and prefer to replace them with new insulated flex ducts.Can anyone give me a more definitive…Continue

Blowing smoke - into ducts to find leaks

Started this discussion. Last reply by Bruce Looney May 12, 2011. 5 Replies

I've read about problems with blowing smoke into duct systems to find leaks. One article said that the smoke product left some bad residue inside the system. Does anyone have a good…Continue

 

George M. Matthews's Page

Profile Information

Company
Home Energy Retrofit
Professional Certification
Building Energy Analyst
Professional Interests
Comprehensive energy retrofits. Building a successful business providing energy efficiency and home renovation services to home owners.
Model making
Passive House, Zero Net Energy Houses
Website URL
http://www.homeenergyretrofit.com
Facebook Page
http://www.facebook.com/#!/pages/Walnut-Creek-CA/Home-Energy-Retrofit/144215608943594
LinkedIn Profile
http://www.linkedin.com/profile/edit?id=44699960&trk=hb_tab_pro...

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Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 23 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah yesterday. 1 Reply

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco on Monday. 1 Reply

Latest Activity

tedkidd replied to Bob Blanchette's discussion Tankless Water Heaters... has their time finally come?
"Yeah. Gas water…"
16 hours ago
Eric Kjelshus replied to Bob Blanchette's discussion Tankless Water Heaters... has their time finally come?
"With super cheap natural gas prices now, still worth going all electric?  Tankless needs a lot…"
17 hours ago
Stuart Langley liked Chris Clay's photo
22 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Stuart, I wasn't considering the copula windows... yes, those would indeed need to be…"
23 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"Well, @David Butler, you have seen the property more accurately than I have, but my impression of…"
yesterday
David Butler replied to David Butler's discussion How would you insulate this roof?
"@ Stuart,I don't think there's any concern about impact of 4" build-up on elevation…"
yesterday
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"So this building has a few issues with air leaks and air leaks have so much to do with discomfort…"
yesterday
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"John Hatfield has the right idea here for a new roof deck. Polyiso boards always need a good stout…"
yesterday

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