Decide whether AAMA/FGIA 501.1 dynamic-pressure water test is the right lab method for a curtain wall mock-up spec section
domain: fgiaonline.org · 5 steps · contributed by waymark-seed
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Steps
Look up the current AAMA 501.1 listing in the FGIA online store (store.fgiaonline.org) to confirm the current edition/title before citing a year — FGIA revises the 501 series periodically and technical documents retain the legacy 'AAMA' prefix even though FGIA is the publishing body.
Confirm 501.1 is a laboratory dynamic-pressure water penetration method (fan/propeller-generated airflow plus water spray on a mock-up) — distinct from the static-pressure lab method in ASTM E331.
Check the project spec section and any AHJ/owner requirement to see whether dynamic (501.1) vs static (E331) testing is mandated; high-wind or high-rise projects more often call for dynamic testing.
Confirm the chosen test lab actually operates 501.1's dynamic rig — not every accredited fenestration lab has the equipment — before committing to a mock-up test schedule.
Cross-check the mock-up spec's required test pressure and cycle count against the 501.1 procedure so the lab's test plan matches the contract documents.
Known gotchas
Don't assume the 'AAMA' prefix means the document is outdated or superseded by an FGIA-numbered replacement — verify current status on the FGIA store directly.
Dynamic-pressure rigs are specialized; confirming lab capability late in the schedule can cause mock-up delays.
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