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Is my HVAC Guy correct? 2 systems instead of 1 system with Dampers

I'll soon be working on converting a second floor of a residential building that was never finished and is being used as an attic for the…

Started by scottscontracting in Best Practices

54 Nov 9, 2013
Reply by Curt Kinder

Time for a shift in thinking

Thank you to my friend Mina Agarabi for bringing this article to my attention: http://www.linkedin.com/today/post/article/20131010122659-1

Started by George Kopf in Marketing

6 Nov 8, 2013
Reply by George Kopf

Calculating attic ventilation

All too often an existing home has far too little attic ventilation and some difficult choices for adding more.  We all know the existing,…

Started by Bud Poll in General Forum

27 Nov 7, 2013
Reply by Roy L. Miller

Air sampling low pressure two part foam

Can anyone share their experience with air sampling of low pressure 2 part foam in residential homes? I'm about 20 hours into reading endle…

Started by Cory Chovanec in General Forum

4 Nov 1, 2013
Reply by Bob Sullivan

The Building Analyst certification is upgrading....don't get left behind!

The Building Analyst certification is upgrading....don't get left behind! Click here to find out more about the BA upgrade: http://www.bp

Started by Mike Kandel in General Forum

0 Oct 31, 2013

Insulation/venting/air barrier for cathedral ceiling

I have a client who has built a home that is ready for insulation. That said - it is what it is and I am not looking for what should have b…

Started by Craig Bird in General Forum

21 Oct 29, 2013
Reply by tedkidd

Just how much does adding air barrier to a knee wall insulation increase it's performance?

I know we have a lot of scientifically minded people here and I bet someone has access to a reliable test data showing the answer to the qu…

Started by Jack Baikoff in General Forum

29 Oct 25, 2013
Reply by Jack Baikoff

Real data on the magic of Low E coatings for cold climates?

I bet most of you are familiar with the claims of the window industry marketing a Low-E coating as a Cure-All for any house, any climate an…

Started by Jack Baikoff in General Forum

2 Oct 25, 2013
Reply by Kurt Albershardt

Hot air language

One of the objectives of my many discussions on "why hot air rises" has been to change the way we describe that process.  The reason I beli…

Started by Bud Poll in General Forum

14 Oct 25, 2013
Reply by Ed Minch

Implementing ASHRAE 62.2

I work with a C.A.O. here in Ohio under the W.A.P. now that D.O.E. requires implementing ASHRAE 62.2  2010 as of PY 13 and 62.2  2013 in PY…

Started by billy g pinnick jr in General Forum

14 Oct 19, 2013
Reply by Thom Knoll

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