Verify a fabricator's current insulating glass unit (IGU) certification status under the IGCC/IGMA program
domain: igcc.org · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Confirm on igcc.org that the certification program is jointly sponsored by the Insulating Glass Certification Council (IGCC) and FGIA (successor to IGMA), administered by an independent third-party administrator, and based on ASTM E2190 (harmonized IG unit standard).
Note that a separate IGMAC certification program exists for the CAN/CGSB 12.8 standard (Canadian) — confirm which program/standard applies to the project before citing a certification.
Check igcc.org's current published fabricator/license listing directly rather than relying on a manufacturer's own claim of certification, since certification status can lapse or be suspended.
Confirm the certification covers the specific IGU configuration (e.g., glass makeup, spacer system) being submitted, not just a general company-wide certification.
Request the fabricator's current certificate number and cross-reference it against the published listing as of the submittal date.
Known gotchas
IGCC/IGMA (ASTM E2190) and IGMAC (CGSB 12.8) are two distinct certification programs under the same administrator — don't conflate them when a project specifies one standard specifically.
A certification claim on a product datasheet should be cross-checked against the current published listing, since status can change after the datasheet was printed.
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