The Insulating Glass Manufactures Alliance (IGMA) Summer Conference 2018 began Tuesday in Vancouver, Canada, with a focus on Emerging Technology and Innovation Task Group updates.
IGMA technical director Bill Lingnell of Lingnell Consulting Services updated members about the insulating glass thermal stress standard. IGMA anticipates it will become an ASTM standard to help specify glass for different applications based on thermal stress risk.
“An ASTM task group was formed in Denver during the June 2018 meeting to review the standard once the modeling is complete,” said Lingnell.
The task group is working to put together a draft standard incorporating the 450 finite element analyses required per frame/spacer combination.
“Our goal right now is to have something for the ASTM meetings coming up,” said Lingnell.
IGMA is working to create a standard for vacuum insulating glass (VIG). The ISO 19916-1 standard is still under development and has been sent out to members as a ballot. The ballot process takes eight weeks.
Part two, the 19916-2 standard test, would focus on mechanical behavior. IGMA hopes to include U.S. standard equipment from NFRC 102.
“It’s a couple of years away,” said Dave Cooper of Guardian, who is also on the IGMA board of directors. “We’re waiting for physical testing to validate the thermal model in Window 7.5 in NFRC.”
Advanced Fenestration Testing/IGCC Provisional Certification
John Kent, president of Administrative Management Systems (AMS), spoke about where the Insulating Glass Certification Council (IGCC) provisional certification and advanced fenestration testing is in the creation process.
The purpose of the testing is to create a less expensive and quicker rapid assessment chamber that correlates to the ASTM E 2190 standard so that manufacturers will know if an insulating glass unit (IGU) will fail before sending it out to a third-party lab for a lengthy certification process.
“Since we met in Tucson, Ariz., we’ve rethought this. I grossly underestimated the effort it would take to make this happen, but I come to you optimistic,” said Kent.
He informed IGMA members that although testing has been suspended, the testing team is currently seeking engineering assistance to design a proposed dual chamber system with cooling.
He is hoping to test IGUs to 130-degree temperatures with -1 psi and a 50-second pressure cycle. Unlike previous testing, cold temperatures will be added, and edge constraints will vary.
“The ASTM E 2190 standard test is not popular. People just don’t have the chambers,” said Kent. “Potentially it’s because they’re big and expensive. We feel if we can make this be less expensive, more people will have them at the end of their production lines. If they have one in the plant to throw units into, they’ll have a fairly good idea if it will correlate with independent lab tests.”
The goal is to produce a test chamber that costs less than $20,000.
“I hope to have the design locked down firm by the IGCC meeting at the end of September,” said Kent.
Helen Sanders, who serves as IGMA vice president and in strategic business development at Technoform Glass Insulation, spoke about California legislation AB 262 during the material transparency update. The legislation would require companies using flat glass to have an environmental product declaration. IGMA will host a webinar Monday, August 6, at 11 a.m. EST to discuss the legislation.
The IGMA Summer Conference 2018 continues through Thursday, August 2. Today’s sessions include updates from the certification task groups, a lunch presentation about bird collisions with glass and the education and safety task groups.
Stay tuned to USGNN.com™ for more news and updates from the conference.