George M. Matthews's Groups (9)

  • Air Conditioning Contractors of America

    26 members Latest Activity: Apr 5

    ACCA is a non-profit association serving more than 60,000 professionals and 4,000 businesses in the HVACR community, working together to promote…

  • Social Media and Energy Efficiency

    104 members Latest Activity: Dec 31, 2016

    Tell us how you reach customers, contractors and others using online social media.

  • Energy Auditing Equipment for Sale, Trade or to Purchase

    303 members Latest Activity: Oct 3

    Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment you have to sell, trade or wish to…

  • Energy Upgrade California

    56 members Latest Activity: Sep 8, 2015

    This is a group for contractors and other pros participating in the Energy Upgrade California energy efficiency program launched 3/1/11.

  • Marketing Energy Efficiency

    253 members Latest Activity: Jul 21

    Sharing ideas, tools and examples of promoting energy efficiency to consumers

  • HVAC

    202 members Latest Activity: Oct 12 HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements, and more. Since heating & cooling are such a big part…

  • Building Simulations

    73 members Latest Activity: Dec 31, 2016 Work collaboratively to find easier, more accurate and better ways to model, predict and verify a home's energy consumption.

  • INFRARED THERMOGRAPHY USERS

    193 members Latest Activity: Oct 12

    This group is dedicated to knowledge sharing and discussion of infrared thermography for building sciences and energy applications.

  • Best Practices (Residential)

    343 members Latest Activity: 20 hours ago

    Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of…

Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 17 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah 20 hours ago. 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…"
9 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…"
10 hours ago
Stuart Langley liked Chris Clay's photo
15 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…"
17 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…"
17 hours ago
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…"
18 hours ago
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…"
18 hours ago
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…"
19 hours ago

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