General Forum (1,012)

Discussions Replies Latest Activity

Cold climate wall

I have heard Joe Lstriburek twice say that a wall in this climate (Albany NY, almost 6,000 DD) should have 1/3 of the R-value on the outsid…

Started by Ed Minch

2 Jul 11, 2014
Reply by Don Hynek

So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during…

Started by TJ Alexander

5 Jul 5, 2014
Reply by James P. Weingardt

Heat Loss Calculation

I want to discuss about the heat loss calculation that why we need to calculate heat loss? According to me - The heat loss calculation is…

Started by Anie

0 Jul 2, 2014

Energy Center and WBA team up to offer WI B4 conference in March 2015

For more than a decade, the Energy Center of Wisconsin and the Wisconsin Builders Association have designed and delivered premier conferenc…

Started by Seventhwave

0 Jun 26, 2014

Concrete floor insulation details

Greetings everyone!     I was hoping I could get some feedback with a building I am working on. The existing concrete was a 3 inch "homeow…

Started by Luis Hernandez

2 Jun 24, 2014
Reply by Hal Skinner

On the Question of Airtightness and Energy Performance

It is my understanding that you need an airtight envelope (let's say less than or equal to 0.6 ACH) along with super insulation (whatever R…

Started by Kaushal Bharath Raju

28 Jun 20, 2014
Reply by Brennan Less

Convert BTU/hr in a Manual J to actual fuel usages

I cannot find any conversion table that translates the BTU/hr heat loss in a Manual J report to the amount of fuel required to heat the bui…

Started by Dan Wise

13 Jun 19, 2014
Reply by eric anderson

Supply ventilation via inline fan and return duct

I am looking for a mechanical ventilation solution that is a step above the single supply or exhaust fan which is set to the required 62.2…

Started by Craig Bird

6 Jun 13, 2014
Reply by Air Track Inc

Successful Window Companies in EE

Hello everyone!  I'm looking for a window company, preferably in the SE, that has been really successful in the EE market. One of our partn…

Started by Daniel Tait

3 Jun 13, 2014
Reply by Tom DelConte

DOE feedback on rooftop units

Our energy efficient coating has been applied to rooftop AC units for around 30 years.  I see those units by the hundreds everywhere as I a…

Started by Hal Skinner

0 Jun 11, 2014

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Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 4 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah 8 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

Stuart Langley liked Chris Clay's photo
3 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…"
4 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…"
5 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…"
5 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…"
6 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…"
6 hours ago
Keith Tripp replied to Sean Lintow Sr's discussion Water Saver or Gimmick? in the group Best Practices (Residential)
"Interesting to see that recirc. has been in use for many years in some places. It is still a…"
7 hours ago
Mahendra Shah replied to John Krochmalny's discussion Psychrometric Chart Training
"John Thanks for show and tell tutorial"
8 hours ago

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