Silvie Votrubova
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Trick for those who have ever input the wrong range on their gauge - blower door tech
2 Replies

I switched the Range Ring, but forgot to change the Range setting on my gauge. I recorded the Flow and left the site – do I have to re-test? Thankfully, NO, there’s an easy fix. Just use the flow…Continue

Started this discussion. Last reply by Silvie Votrubova Jun 14, 2012.

Codes, codes & more codes

Come by to check out our latest newsletter featuring building code related stories.  If you're interested in receiving the…Continue

Started Apr 30, 2012

Before and after leakage tests. What to expect.
2 Replies

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 another blower door and they only get a 4% reduction to…Continue

Started this discussion. Last reply by Silvie Votrubova Nov 28, 2011.

Making air leakage training flow

Article…Continue

Started Oct 25, 2011

 

Silvie Votrubova's Page

Latest Activity

Silvie Votrubova posted events
Sep 24, 2012
Silvie Votrubova posted videos
Jul 30, 2012
Silvie Votrubova's 2 videos were featured
Jul 26, 2012
Silvie Votrubova replied to Silvie Votrubova's discussion Trick for those who have ever input the wrong range on their gauge - blower door tech
"That's a great suggestion Dale."
Jun 14, 2012
Dale@EnergyWright replied to Silvie Votrubova's discussion Trick for those who have ever input the wrong range on their gauge - blower door tech
"That's a good solution for correcting the error after leaving the site.  I recommend changing the order of your range correction procedure.  When your gauge calls for the next smaller ring, change the gauge setting first, then install…"
Jun 13, 2012
Silvie Votrubova posted a discussion

Trick for those who have ever inputed the wrong range on their gauge - blower door tech

I switched the Range Ring, but forgot to change the Range setting on my gauge. I recorded the Flow and left the site – do I have to re-test? Thankfully, NO, there’s an easy fix. Just use the flow chart for your fan to locate the correct results! Let’s say you read 33 CFM with your gauge set to Mid. But, yikes, later you remembered your DucTester actually had the Low Range Ring attached.  You recorded 33 CFM.Find the 33 CFM you recorded under the “Mid“ Range column on the flow table. Then, just…See More
Jun 4, 2012
Silvie Votrubova posted a discussion

Codes, codes & more codes - check out our latest newsletter on building codes

Come by to check out our latest newsletter featuring building code related stories.  If you're interested in receiving the newsletter on monthly basis either email me directly, or send me a message through Home Energy Pros.If you have an idea for a story, or have a topic you would like to see discussed, please let me know.Silviesilvie@retrotec.comSee More
Apr 30, 2012
Silvie Votrubova replied to Jack Baikoff's discussion Leakage to outside on ducts fully within the envelope
"  Hi Jack, I spoke with Colin, the president of Retrotec, to get his opinion on the matter.  Here is what he had to say: "On the surface of the issue, it may appear to make no sense to do a duct leakage test to outdoors if the ducts…"
Apr 27, 2012
Silvie Votrubova posted an event
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Large Building Air Leakage Training at Seattle

May 18, 2012 all day
Seattle code now requires all commercial buildings be tested for air tightness. Spaces are limited! Register now and get all your large building testing questions answered!The Air Barrier Solutions 2012 Seminar (hosted by BCRA) is taking place in Seattle, May 16th & 17th, 2012. Retrotec is excited to attend this informative event that covers air barrier system requirements, development, testing, and sustainability –…See More
Apr 26, 2012
Silvie Votrubova's video was featured

How a Blower Door Works

Training video part of Building Pressure training DVD available through http://buildingpressure.org/ You can also ask your Retrotec sales rep for a copy.
Jan 11, 2012
Silvie Votrubova posted a video

How a Blower Door Works

What is the basic science and technology behind how a blower door (door fan) works
Jan 9, 2012
Silvie Votrubova replied to Grant Salmon's discussion Mid/High Rise ACH Question in the group Multifamily Buildings
"Hi Grant, I checked with our tech support department and here' what they had to say. The short answer is no. The wind and stack coefficients that are used in the n-factor calculations are empirically determined from many experiments. There is…"
Dec 1, 2011
Silvie Votrubova replied to Silvie Votrubova's discussion Before and after leakage tests. What to expect.
"Appreciate the feedback William.  The piece comes from our newsletter, if you're not on the list and want to get on, just let me know. Thanks."
Nov 28, 2011
William H Nickerson replied to Silvie Votrubova's discussion Before and after leakage tests. What to expect.
"Good job putting up this post.It puts a better view on accurcy.I watched a video of a guy who had some serious time in this field and he says we should do 10 individual single point tests -EVERY TIME?.I think this puts that in perspective."
Nov 27, 2011
Silvie Votrubova replied to Thomas Price's discussion Multi Family Auditing
"Another message from Colin regarding the latest comments:   "There is a big leap from testing an entire Multi-Family building with 8 blower doors and using a smoke pencil and a gauge. Surely there must be middle ground if we could develop…"
Nov 25, 2011
Silvie Votrubova's video was featured

A new way to test ducts

Brand new just released !
Nov 25, 2011

Profile Information

Company
Retrotec
Professional Certification
Training & Energy Code Coordinator
Website URL
http://www.retrotec.com

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Silvie Votrubova's Blog

Duct Testing Accuracy





Did you know you can test the accuracy of your equipment before you get on site? As a manufacturer, we often get tech support calls from auditors who are on site, and wondering if their equipment is providing an accurate reading. Thankfully, there is an easy way to test both your duct tester and gauge, regardless of manufacturer, before you get on site. There is, after all, nothing worse than showing up on site, and not being…

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Posted on December 10, 2010 at 6:00am — 1 Comment

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At 10:50am on December 4, 2010, Diane Chojnowski said…
Welcome to Home Energy Savers. We're happy to see people from Canada here! It would be great if you would add your location to the Member Map.

Thanks,
Diane
 
 
 

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