Infrared Thermographic Scan

We use high resolution infrared (IR) cameras to discover pathways of air leakage, moisture intrusion and heat loss through the air barrier. (Stadium Place – Seattle, WA)


Whole Building Air Leakage

Air leakage testing measures air leakage rates through the envelope under controlled pressurization and depressurization. (2030 8th Ave, Cirrus Apartments – Seattle, WA)


Air Barrier Design & Leakage Testing

On this 41-story residential tower, we conducted water penetration testing, air barrier design, and whole building air leakage testing. (2030 8th Ave, Cirrus Apartments – Seattle, WA)


Whole Building Air Leakage Testing

Air leakage testing was conducted in accordance with energy code requirements to confirm proper installation of a continuous air barrier and enclosure at the interfaces between the different systems. (Alley 111 – Bellevue, WA)


Air Barrier Consulting

A well designed and installed air barrier will decrease the risk of water intrusion and condensation, improving the air quality and reducing the load on the mechanical systems. (Seattle Academy of Arts & Sciences STREAM Building – Seattle, WA)


Air Barrier Consulting

Air Barrier Consulting

Modern construction practices are increasingly embracing the concept of an air barrier within the building envelope. Many high-performance buildings now in operation owe their success largely to this passive and hidden system.

In addition to improving building energy performance, air barriers reduce the risk of damage due to condensation, contribute to proper sizing of mechanical systems and reduce the impact of wind driven rain.

At Morrison Hershfield, we take steps to mitigate this risk by ensuring proper detailing of the system, closing the gaps at the interfaces between the various systems to secure a continuous air barrier, and quality assurance inspections at the time of installation, leveraging technology such as infrared thermographic scanning to pinpoint where additional air sealing is required.

Our Experience

We have worked extensively with contractors and architects on the appropriate installation of air barriers since the mid-1980’s. We have published articles and written technical guidelines for industry associations, such as the Air Barrier Association of America, the Northwest Energy Efficiency Council, National Research Council and Canada Mortgage and Housing Corporation.

We began conducting Whole Building Air Leakage Testing for the US Army Corps of Engineers, the first agency to require air barrier testing.

In recent years, a number of local jurisdictions have adopted this requirement. Since that time, we have tested all types of buildings from warehouses and maintenance facilities to 40-story high-rises and large 100,000 sq. ft. footprint garden-style apartments.

Contact Our Team

Read the Latest From Our Blog on Building Science

111 South Main Celebrates Engineering News Record Award of Merit

Posted on Wednesday February 07, 2018

111 South Main, Salt Lake City’s 24-story high rise office tower, is being recognized by Engineering News-Record for the Global Best Projects 2017 Award of Merit in the Office category... Read More »

Seattle Energy Code: How will 2018 updates affect your next project?

Posted on Wednesday December 20, 2017

The Seattle Energy Code is one of the more stringent codes in the country, and continues down that path with its 2018 revisions... Read More »

Morrison Hershfield’s Stevan Vinci Named 2017 LEED Fellow

Posted on Monday October 23, 2017

Stevan Vinci, Building Science Consultant and Sustainability Specialist, has been selected as a 2017 LEED Fellow by the Green Business Certification Institute (GBCI). This honor is granted for his outstanding work.. Read More »