Zone pressure diagnostics (ZPDs) are used to identify and measure series leaks, or leaks that pass through several zones of the house. For example, air leaking through the attic roof must first move from the living spaces into the attic through the attic floor. ZPDs measure the pressure difference between the living space and the bordering zone (such as the attic), and between the bordering zone and the outdoors. These bordering zones can also be basements, garages, kneewall areas, or particular rooms.

ZPD testing relies on the principle that the ratio of the pressure difference across the interior and exterior boundaries of a series leak is a direct function of their leakage area. Michael Blasnik developed the set of ZPD techniques known as the Blasnik methods. Ever since, these methods have become well established among weatherization crews,
with hundreds of users across the country. ...

Read more in David Bohac's Home Energy Article, "Zone Pressure Diagnostics" in the May/June, 2002 issue.

Tags: (zpds), blasnik, diagnostics, energy, home, method, pressure, tools, zone

Views: 152

Discussion Forum

Affordable Manometers?

Started by Isaac Savage. Last reply by Pete Stoermer Feb 15, 2016. 3 Replies

Looking For A Retrotech Duct Tester ?

Started by Chris Schiewer. Last reply by Jamie Kaye Dec 16, 2015. 1 Reply

Buying Used Equipment

Started by Nick Semon May 18, 2015. 0 Replies

Used Blower Doors?

Started by Isaac Savage. Last reply by Cameron Millard Jan 16, 2014. 3 Replies

Instant read thermometers

Started by Ryan Moore. Last reply by David Meiland Apr 29, 2013. 3 Replies

Videos

  • Add Videos
  • View All

Latest Activity

Home Energy Magazine's blog post was featured
2 hours ago
Profile IconEfficiency First California and Kevin Daly joined Home Energy Pros
13 hours ago
Kevin Daly joined allen p tanner's group
Thumbnail

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
18 hours ago
Bryan Gabriel replied to Larry Nissman's discussion Strange IR Image
"Is this a close up or broad view?"
18 hours ago
Home Energy Magazine posted a blog post
23 hours ago
Ashique Ibrahim posted a status
"Hello everyone.Please suggest a software to carry out analysis of energy auditing."
yesterday
Ashique Ibrahim posted a status
"Hello guys. I am student im doing my project on emergy auditing and benchmarrking. Please suggest the best software to do the analysis."
yesterday
Adin Maynard replied to Adin Maynard's discussion 2x DG-700 manometers for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Yes, one is still available ."
yesterday

Home Energy Pros

Welcome to Home Energy Pros – the unique digital community by and for those who work in the home energy performance arena.

Home Energy Pros was founded by the developers of Home Energy Saver Pro (supported by the U.S. Department of Energy) and brought to you in partnership with Home Energy magazine.  Home Energy Pros is sponsored by the Better Buildings Residential Network. Please honor our Guidelines

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service