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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Franco Oyuela replied to Jamie Kaye's discussion Spray Foam vs. Fiberglass - R-value only?
"Fiberglass has an R-Value of 3 per inch while spray foam has a R- Value of 7 per inch. ... The…"
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Glen Gallo replied to Jerry Needham's discussion Blower door test for small apartment building
"Thanks Colin Interesting subject and many good answers. Thank you Jerry for the question. I have…"
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Yudah Schwartz replied to Jerry Needham's discussion Blower door test for small apartment building
"John What are your thoughts on the AeroBarrier system?"
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Duct Optimization and Performance - Free CE Webinar at Webinar Online

October 31, 2018 from 12pm to 1:15pm
Good indoor air starts with proper duct design and installation. In residential ventilation…See More
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Brett Little posted an event
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Duct Optimization and Performance - Free CE Webinar at Webinar Online

October 31, 2018 from 12pm to 1:15pm
Good indoor air starts with proper duct design and installation. In residential ventilation…See More
Friday
John Nicholas replied to Jerry Needham's discussion Blower door test for small apartment building
"Thank You, Colin!  Those are very good points and processes to do some Zone Pressure…"
Friday
Colin Genge replied to Jerry Needham's discussion Blower door test for small apartment building
"The way we'd normally do this is to mount one blower door in the hallway, then a duct tester…"
Friday
Scott Katznelson replied to Jerry Needham's discussion Blower door test for small apartment building
"Most of the work I do is retrofit of older buildings. Marriage wall leakage is often significant,…"
Thursday

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