University of Wisconsin – Oshkosh

Oshkosh, Wisconsin

University of Wisconsin, Oshkosh, Sage Hall exterior


Grumman|Butkus Associates teamed with MFH Associates to provide building envelope commissioning on a new 212,000-square-foot, $30 million academic building. The integrity of the air barrier, vapor barrier, water barrier, and rain screen were tested.

Building Envelope Commissioning

The new building has masonry wall construction with a spray-applied vapor barrier material. Wall ties were installed at 16 inches on center, resulting in at least 50,000 vapor barrier penetrations around the perimeter of the building. Bubble testing at wall ties was performed. During the first day of vapor barrier installation, 55 tests were performed, with 28 tests failing. A new vapor barrier application procedure was developed, and the vapor retarder was reapplied at the wall ties. The same areas were re-tested, and all penetrations passed.

Smoke tracer testing was also performed, revealing 50% failure of the window clips on Day 1. A new procedure was developed, and additional sealant was added. New smoke tracer tests verified successful performance of the new clips.

Other  BECx tasks included water stream testing and roof installation site observations. After commissioning was completed, air and vapor barrier penetrations and window sealant gaps were greatly reduced.

View More Projects

Interested in learning more about how GBA can assist with your facility objectives? Our portfolio is a great place to start. 

Skyscraper board room

430 N. Michigan (Realtor Building)

A large-scale vertical expansion called on GBA's analytical, design, and commissioning skills.

Hallway with rehab equipment

Shirley Ryan AbilityLab, Pediatric & DayRehab Center

This outpatient center serves children and adults; GBA provided engineering design services for the adaptive reuse project.

Exterior of Todd Building, University of Kentucky

University of Kentucky, Lee T. Todd, Jr. Building

An ASHRAE Level 1 audit,  retro-commissioning, and a lab ventilation assessment improved sustainability.