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Ventilation for Spray Foam retrofit

I have a flat roof home with 3 feet of clearance from attic floor to ceiling. It is 1920 square feet, existing home. The space is unvented,…

Started by Craig Bird

3 Dec 15, 2011
Reply by tedkidd

D.I.Y. Services to Homeowners. Do they make sense?

Here is a scenario:   You are a home performance contractor. Sales are down (slightly or significantly). Homeowners in your area just don't…

Started by Patrick Michaelyan

9 Dec 9, 2011
Reply by Patrick Michaelyan

Mold on exterior walls

I have been doing a good deal of research into the topic of mold that has grown on exterior walls (and appears to be spreading).   I have h…

Started by Patrick Michaelyan

10 Dec 7, 2011
Reply by David Meiland

Energy Upgrade California

Does anyone have a good disclosure about NOT hitting your target on the test out ?

Started by Dave Loperena

0 Dec 7, 2011

Energy Prices Will Only Climb, Says One Brazilian Oil Exec

Oil and gas prices are only due to climb, says Petrobas chief.  And that's OUR opportunity to make homes and commercial buildings more ener…

Started by Melissa Baldridge

2 Dec 4, 2011
Reply by Patrick Michaelyan

Blown Cellulose VS Blown Fiberglass in the Attic

As a rater and insulation contractor I personally respect the overall insulation properties of blown cellulose a lot more than blown fiberg…

Started by Isaiah Borel

4 Nov 30, 2011
Reply by Patrick Michaelyan

Radiant barrier over blown in insulation

I have seen mold growing under a radiant barrier installed over blown in insulation.  I am looking for any articles, etc.... about this pro…

Started by Rob Wright

21 Nov 28, 2011
Reply by Ed Minch

Before and after leakage tests. What to expect.

Your before-test result is 4000 CFM50. After two days of work, you measure a 21% reduction to 3150 CFM 50. Your after-test is checked using…

Started by Silvie Votrubova

2 Nov 28, 2011
Reply by Silvie Votrubova

Should home-performance ratings be required on property listings?

Recognizing that this group may be a bit biased, I invite your responses for a survey on whether home-performance ratings should be require…

Started by Leah Thayer

10 Nov 26, 2011
Reply by Chris J Folse

Duct testing in a conditioned crawlspace

Concerning duct testing in crawlspaces (this is for new houses for Energy Star, but will be the same for existing houses):I have a house on…

Started by Ed Minch

13 Nov 25, 2011
Reply by Ed Minch

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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
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Hal Skinner replied to Trip Smith's discussion Starting a Home Weatherization Business. Considering it...
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Bob Blanchette replied to Christopher Talarico's discussion Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace
"When it costs the same price as 2 separate systems there is no juice regardless of how hard you…"
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j. west commented on Christopher Morin's blog post UPDATED: Big Changes for Duct Testing in MA
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tedkidd replied to Christopher Talarico's discussion Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace
"Nice posts Steven and Eric.   Scale on my combi is a recurring problem.  Attaching…"
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