IECC Committee Votes to Not Allow AAMA 507 as NFRC Alternative

The IECC code change proposal EC4 was disapproved during code hearings this week in Minneapolis. If approved, EC4 would have allowed for the use of AAMA 507 for rating curtainwall and storefronts an alternative to NFRC 100 and 200.

Proponents included Craig Conner, Building Quality, representing himself; Julie Ruth, JRuth Code Consulting, representing AAMA; Rand Baldwin, Aluminum Extruders Council; Margaret Webb, representing the Insulating Glass Manufacturers Association; and Greg Carney, representing the Glass Association of North America.

According to hearing documents, the committee voted to disapprove the proposal, as it did not include third-party oversight requirements for manufacturers doing the determination of the fenestration ratings. The committee also said the standard was unclear regarding who should be qualified to do the fenestration rating calculations.

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