Bob Kretvix's Discussions (20)

Discussions Replied To (10) Replies Latest Activity

"At least you know now.  So many materials contain asbestos its probably more difficu…"

Bob Kretvix replied Nov 28, 2012 to Unknown Old Insulation

19 Nov 10, 2016
Reply by Jeff Martin

"All I can say is that if it isn't known and has the appearance of something that cou…"

Bob Kretvix replied Oct 11, 2012 to Unknown Old Insulation

19 Nov 10, 2016
Reply by Jeff Martin

"Never saw this, but looks a little like air-cell pipe insulation. This is considered…"

Bob Kretvix replied Oct 11, 2012 to Unknown Old Insulation

19 Nov 10, 2016
Reply by Jeff Martin

"You can also get types where you plug in the dimensions and it gives readings in cfm…"

Bob Kretvix replied Sep 28, 2012 to Tired of climbing ladders and reaching to find air leaks during blower door test I have a solution!!!

17 Nov 26, 2012
Reply by Damien Herold

"You really didn't answer how you use that cfm number.  Are you just comparing relati…"

Bob Kretvix replied Sep 28, 2012 to Tired of climbing ladders and reaching to find air leaks during blower door test I have a solution!!!

17 Nov 26, 2012
Reply by Damien Herold

"Can you explain how you would use the thermoanemometer and your criteria for air flo…"

Bob Kretvix replied Sep 27, 2012 to Tired of climbing ladders and reaching to find air leaks during blower door test I have a solution!!!

17 Nov 26, 2012
Reply by Damien Herold

"You are right about the significant cost for air sampling.  As an Industrial Hygieni…"

Bob Kretvix replied Feb 9, 2012 to Spray Foam Liability

10 Feb 14, 2012
Reply by Bruce Navin

"Dirty Sock Syndrome is actually caused by a combination of bacterial "slime" (biofil…"

Bob Kretvix replied Feb 2, 2012 to Dirty Sock Syndrome in high efficiency HVAC units

12 Nov 17, 2014
Reply by Hal Skinner

"Dmitri Gas leak detectors are generalized meters which can detect a wide variety of…"

Bob Kretvix replied Dec 29, 2011 to Ambient Combustable Gas

6 Jan 6, 2012
Reply by Tom Barrett

"Tom, Why did you have to change the plumbing in the San Diego pool?  I just purchase…"

Bob Kretvix replied Jun 2, 2011 to How's the water? Managing energy use in Pools.

12 Jul 21, 2011
Reply by Mike Estupinian

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Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 2 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah 5 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
1 hour 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…"
2 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…"
2 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…"
3 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…"
4 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…"
4 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…"
5 hours ago
Mahendra Shah replied to John Krochmalny's discussion Psychrometric Chart Training
"John Thanks for show and tell tutorial"
5 hours ago

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