Education, Fabrication Challenges, New Publications and More at IGMA Winter Conference

More than 100 industry representatives gathered in Tucson, Arizona, last week for the Insulating Glass Manufacturers Alliance 2018 Winter Conference, where discussions ranged from the challenge of fabricating oversized insulating units to improving education regarding PIB migration. The group included an increase of first-time exhibitors compared to previous events and international representatives from as far as Australia.

Oversized concerns

Complex insulating glass units, particularly oversized units, present a growing challenge for fabricators, according to Roland Rossmann, project manager and leader at Garibaldi Glass Industries. Rossmann leads the IGMA task group dedicated to addressing design considerations for oversized insulating glass units. “In our facility, we see people quoting particularly large units…Fabricators are expected to produce large double and even triple units,” Rossman said during the task group meeting. “We need to, as a group, establish some guidelines.”

PIB migration

During the Technical Policy Committee meeting, the PIB Migration task group continued its work on developing a report that addresses the use of polyisobutylene (PIB) as a primary sealant in insulating glass units. The document, which is being developed in collaboration with the Glass Association of North America, now part of the National Glass Association, will describe the purpose of PIB primary sealants in the fabrication of IGUs. The document will address the concern of PIB migration.

During the meetings, the group also provided updates, and continued work, on its various education, certification and technical activities.


IGMA launched its IG Fabricator Workshop in 2016 to provide a venue for in-depth education on insulating glass production. The event offers both classroom and hands-on education from a group of industry experts who lead attendees through all aspects of fabricating and testing IGs, from cleaning and cutting, to gas fill and frost point. In 2017, it hosted two sold-out workshops and expanded the event to include a session on investigating IG failures.

“A variety of people come to the workshops, from people who have been there a few weeks to veterans who are top executives in the company,” says Bill Lingnell, IGMA technical consultant. “[The workshops] fill up fast. We had to turn people away at the last one.”

IGMA will continue its fabricator workshops in 2018. Find more information on its website.


Since IGMA’s Summer Conference in Montreal, the organization published two new documents: TB-2700-18 Sealant Adhesion Test Method and TM-4510-18 IGMA Quality Procedures for the Manufacturing of Insulating Glass Units to the ISO 9001 Standard. The documents are available on the IGMA website.

In 2018, IGMA is on track to complete remaining quality management documents, Tolerances of IG Cavity Width and Load Resistance for Two-sided Support IGUs, Work Instructions and Forms for the Fabrication of IGUs to ISO 9001, and TM-4400, Voluntary Guidelines for Insulating Glass Unit Cavity Width Manufacturing Tolerances. The organization also expects to publish an educational web document for homeowners, A Consumer Guide to Understanding Glass Standards. The document was jointly developed with the American Architectural Manufacturers Association.

IGMA’s next meeting is the 2018 Summer Conference, set for July 31 to Aug. 2 in Vancouver, British Columbia.

Read more here.