For Consumers

IGMA is the North American association of insulating glass manufacturers, suppliers of component materials and other industry-related professionals dedicated to upgrading product performance by promoting awareness of technological developments in the industry. IGMA is committed to meeting or exceeding our members and customers expectations.

What is an insulating glass unit?
A combination of two or more panes of glass with a hermetically sealed air space between the panes of glass, separated by a spacer. This space may or may not be filled with an inert gas, such as argon.

What is product certification?
Is the process of certifying that a product has passed performance and quality assurance tests or qualification requirements stipulated in regulations such as a building code and nationally accredited test standards, or that it complies with a set of regulations governing quality and minimum performance requirements.

Why should I buy a certified insulating glass product?
Who certifies? Manufacturers who are committed to their customers, their products and who demonstrate code compliance.
Demonstrated quality & performance: adherence to standards through periodic, accelerated lab testing & on-going product performance through unannounced periodic audits / inspections.

Assurance to end-users: window & door manufacturers, building code officials, architects / specifiers and consumer through labeling and traceability.

How do I know my windows are filled with Argon?
When a fabricator makes the decision to gas fill his units he makes additional efforts to be certain the gas remains in the unit, everything from component and material selection to training, machinery and craftsmanship on his production line. It is mandatory for manufacturers to participate in the Gas Content Initial & After weathering certification program. Units must 90% and 80% gas-fill on submitted test samples.

Research has concluded that gas is only lost if and when the edge seal around the glass perimeter fails. When the seal fails, the glass will show visible fogging due to the introduction of water vapor. Consequently, unless the unit has visibly failed, the consumer should be assured that most of the argon has been retained.

IGMA Programs for Manufacturers

IG Fabricators Workshop

In the past year, IGMA held three IG Fabricators Workshops in Texas, Minnesota and Ontario where more than 100 practitioners of the IG industry were led through the most important aspects of fabricating and testing IG units by the experts of our industry. The workshop features a balanced mix of classroom education along with hands-on demonstrations to discover best practices for cleaning, cutting and handling glass, desiccants, sealants, gas fill, frost point and much more. The reviews of the Workshops were incredibly positive. Here are comments from actual paid attendees:

  • “The group of experts you had were awesome. They were very attentive, welcoming and helpful.”
  • “The hands-on portion is awesome. Being able to take what was learned in a presentation and then apply it in real life was really effective.”
  • “Hosting the event at a testing facility is great… while participants may see the IGU processes discussed at each of the stations every day, they don’t always get to see the testing methods and apparatus conducted from a third party.”

Typically, modules for the Workshops include:

  • Station 1: Glass Cutting & Washing
  • Station 2: Spacer and IG Fabrication
  • Station 3: Sealants / Hot Melt Sealant / Sealant Adhesion & Butterfly Test
  • Station 4: Volatile Fog
  • Station 5: Gas Filling and Measurement
  • Station 6: Desiccants and Desiccant Matrix
  • Station 7: Forensic Investigation of IGU Failures

Stay tuned for the registration to the next IG Fabricators Workshop!

Preventing IG Failures

For several years, IGMA has sponsored a program for IG manufacturers to increase the quality of IG units in the field. This program includes presentations on the following:

  • Insulating Glass Unit Design
  • Glass Receiving, Cutting and WSashing
  • Rigid Spacers, Muntins and Grids, and Flexible Spacer Systems
  • Desiccants and Desiccated Matrix
  • Sealants
  • Gas Filling
  • Glass and Breakage
  • Product Certification
  • Glass Performance for Energy Efficient Fenstration
  • Glazing Guidelines for Commercial and Residential IGUs
  • Handling Glass Safely
  • Forensic Investigations of IGU Failures

Click here for more information on this program.

Insulating Glass Manufacturing Guidelines: Important Considerations

This technical bulletin from IGMA looks at important guidelines to consider in the industry. Download now.

IGMA Leadership Development Program

The IGMA Leadership Development Program focuses on the soft skills a leader needs to achieve his or her full potential. Everyone in the workforce develops hard skills required to be employed in the insulating glass industry, but developing soft skills (communicating effectively with people, recognizing a company’s culture and effectively aligning with that culture, understanding accountability in the workplace, etc.) provides the necessary intangibles to become a great leader. Once again, IGMA is leading the glass industry into the future by creating the first leadership development program for manufacturers and fabricators of its kind. The Program offers one module monthly for twelve months, mostly via online webinar/broadcast. Learn more about this program.


This AAMA FenestrationMasters® program offers professional certification and education that covers the full breadth of the fenestration industry, including performance standards, products and materials, test methods and code requirements. This program allows participants to acquire the latest information in industry standards and practices, as well as distinguishes certified professionals from the competition. AAMA is committed to expanding collaboration with other industry organizations and to strengthening those relationships. In support of this objective, IGMA members are being offered the opportunity to enroll in the FenestrationMasters® program at the AAMA member price. That means more than a 50 percent savings – up to $700 for an individual or $7,000 for a group for orders placed through December 31, 2017.

To take advantage of this offer, fill out this order form and use the discount code IGMAFM on the credit card authorization page. Send the form to for processing.

Sign Up for News

* indicates required

Email Format